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ANEXO D.- Documentos relevantes encontrados relacionados en general con Celdas Eléctricas.
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GB1404931 A ELECTRICAL
SWITCHGEAR REYROLLE PARSONS
1971GB-0029269
19710622
Heading H1N In high voltage metal-clad switchgear filled with gas
under pressure (e.g. SF 6 , compressed air) the adjoining sections of
bus-bar or connection chambers have bellows-type expansion joints
which permit relative movement, provide compensating means to
minimize end loading on the chambers, and also cater for any
assmebly misalignment, each joint comprising a main bellows 13, Fig.
1, attached in a gas-tight manner between end flanges 14, 15 of
chambers 11, 12 and a group of pressure-compensating auxiliary
bellows 16 mounted between these end flanges by means of
overlapping brackets 17, 18 (detailed in Fig. 2, not shown) so that the
two sets of bellows act in opposition. The interior of each
compensating bellows is connected by a pipe 19 to the interior of
chamber 11 so that all bellows and chambers are at a common
pressure. The total effective internal cross-sectional area of the
compensating bellows 16 is preferably equal to that of the main
bellows 13 so that any end loading on the chambers arising from gas
pressure and/or thermal expansion stresses transmitted to the
chamber supporting structure is compensated since movement of
the chambers tending to compress the main bellows 13 is
accompanied by a similar expansion movement of the
compensating auxiliary bellows 16 and vice versa. The group of
compensating auxiliary bellows is normally distributed around the
flange mounting for the main bellows (Fig. 3, not shown) but
combination into a single double walled unit of annular cross-section
with its inner wall surrounding the main bellows is referred to. The
main bellows are of non-magnetic material to eliminate heating
from induced electric currents.
NO NO
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IE34775 B1
IMPROVEMENTS IN
AND REALTING TO
METAL-CLAD
SWITCHGEAR FOR
HIGH VOLTAGE
COMPRISING CABLE
TERMINAL BOXES
SIEMENS 1970IE-0001539
19701201 NO NO
US3691332 A
BR7107468 D0
CA937962 A1
GB1353177 A
ES396728 A1
FR2113894 B1
VACUUM-TYPE
ELECTRIC
SWITCHGEAR
GENERAL ELECTRIC 1970US-0088503
19701110
Heading H1N A horizontally-withdrawable circuit-breaker unit
comprises a truck 26 with a horizontal base 28 and a vertical frame
82 spaced from the rear of the truck, two vacuum type interrupters
60 for each phase vertically mounted above and below a casing 80
supported on insulators 83 extending from the frame 82 towards the
rear of the truck, a pair of horizontally extending isolating contact
studs 90, 92 for each phase extending adjacent the free ends of the
interrupters 60, insulators 93, 94 supporting the studs on the truck, and
vertical insulating barriers 110 projecting from the frame towards the
rear end of the truck and interposed between the phases. Further
barriers may be provided at the outer sides of the outer phases. The
interrupters 60 are connected by flexible braids 95 to the studs 90, 92
so that when the unit is racked in, forces on the studs are transmitted
to the frame and not to the interrupters. Openings are provided in
the lower portion of a front panel 122, the base 28 of the truck 26
and at the top 116 of the switchgear structure so that cooling air
moved by natural convection can flow in the spaces between the
insulating barriers which form the walls of three chimneys.
NO NO
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BE743728 A
FR2027455 A1
US3562593 A
ES374577 A1
GB1275654 A
BR6915722 D0
METAL-ENCLOSED
SWITCHGEAR WITH
VERTICALLY
DISPOSED
CONDUCTORS
WESTINGHOUSE
ELECTRIC
1968US-0788168
19681231
In order to enable horizontally extending main phase bus bars in
metal-enclosed switchgear to be made in standardized unit lengths,
it is necessary that the breaker compartment widths be made a
constant dimension. This is achieved by keeping the horizontal
distance between poles of the breaker units a constant value
irrespective of tee current rating of the breakers. The primary
disconnect contact system of the removable breaker units is so
constructed that the extra conductor cross section required as the
current capacity is increased is obtained by changing the vertical
dimensions of the current carrying members and keeping the
horizontal dimensions substantially constant.
NO NO
GB1134051 A Electrical distribution
apparatus BROOKHIRST IGRANIC
1965GB-0005948
19650211
A withdrawable switchgear unit includes cartridge fuses 28 in series
with a main switch 31 connected between plugging isolator
contacts 35, 37 which are engageable with bus-bars 13 and output
terminals 18-20 of a fixed unit. The copper bus-bars 13 are insulated
and metal clad except where they are engaged by contacts 35, 37
and may have various cross-sections (Figs. 9-11, not shown) for
various current ratings. The fixed unit may also carry a plurality of
auxiliary switches (61, 62, 63), operable by movement and operation
of the withdrawable unit (Figs. 12-14, not shown). The movable unit
has an insulating housing 25 with a partition 26 separating upper fuse
chambers 27 from the switch chamber. The switch 31 comprises fixed
contacts 36<SP>1</SP>, 36<SP>11</SP> connected to the fuses and
the contacts 37 and a resiliently mounted bridging member 39a. The
switch is operated through a lever 40 by an overcentre compression
spring snap action mechanism (Figs. 6-8, not shown). A link 42 locks
the fixed and movable units together when the switch is closed.
NO NO
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FR1412479 A
BE667603 A
NL6509866 A
GB1108674 A
DE1540176 A1
Metal-clad
switchgear MERLIN GERIN
1964FR-0984069
19640801
Metal clad switch-gear comprises a plurality of compartments C
(one shown) each enclosing a polyphase main switch (one pole
shown) with lower terminals 21 which may be connected to bus-bars
13 (one shown) or to earthing contacts 47 by an isolating switch 45.
The bus-bars 13 extend in a common horizontal plane below the
terminals and the poles of each main switch are in a plane
perpendicular to the plane of the busbars. The upper terminals 25 of
each main switch are connected by conductors 29, 31, 32 in a
moulded block 30 to a cable box or, in the case of one of the main
switches, to fuses 12 in a further compartment D. The fuses may be
bridged by a short-circuiting switch 56.
NO NO
US3278712 A
Metal-clad
compressed-fluid
switchgear
constructions and
fluid couplings
therefor
MITSUBISHI ELECTRIC 1963JP-0014875
19630320 NO NO
GB1044687 A
Improvements in
and relating to
metal clad
switchgear
ASSOCIATED
ELECTRICAL
INDUSTRIES
1962GB-0031482
19620816
A circuit breaker comprises three switching units connected in series
by conductors 20, 21 and mounted in a metal enclosure (not shown),
the fixed contacts 9, 12 of two of the units being supported on
bushing insulators 1, 2 through which pass connections 4, 5 to
external terminals while that 17 of the third unit is supported on a post
insulator 3 mounted on the wall of the enclosure. The fixed contacts
9, 12, 17 are placed in arc extinguishing chambers 8, 15, 16 and co-
operate with sliding rod contacts 10, 13, 18 insulatingly mounted on
an operating rod 22. The chambers 8, 15, 16 also accommodate
auxiliary arcing contacts 9a, 12a, 17a connected by resistors 11, 14,
19 to the fixed contacts 9, 12, 17 respectively. The enclosure may
contain oil. In a modification (Fig. 2, not shown) the third insulator 3
carries two switching units thus providing four series breaks.
NO NO
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US3054874 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1959US-0809649
19590429 NO NO
GB927357 A
Metal-clad electric
high voltage
switchgear
MOSER GLASER
REYROLLE A
1958CH-0060552
19580613
In the metal-clad switchgear of the parent Specification, the
coupling joints are provided with potential gradient control by
incorporating condenser foils in one side of the joint, or in both sides
of the joint, or in a coupling member interposed between the units to
be coupled.
NO NO
US2900464 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1958US-0725287
19580331 NO NO
GB842088 A
Improvements in
metal-clad electric
switchgear
THOMSON HOUSTON 1956GB-0013002
19560427
A voltage transformer 7 is isolated from its associated metal-clad
switchgear by swinging it down about a hinge 9 on the outside of
the stationary portion of the switchgear. In the isolated position, the
transformer is supported by links 13, 14 and the openings 12 through
which the contacts 10 normally project are closed by a shutter 17
attached by further links 16 to the links 13. Connection to the
transformer secondaries is by way of contacts 18 on the transformer
casing and contacts 19 on the switchgear.
NO NO
US2811618 A Metal-clad
switchgear
FEDERAL PACIFIC
ELECTRIC
1956US-0579502
19560420 NO NO
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GB825707 A
Improvements in
electrical
switchgear
THOMSON HOUSTON 1956GB-0009541
19560327
A draw-out switchgear panel has one set of isolating contacts 12
mounted in a carriage 22 slidable in a movable portion 14 and
operable by a pivoted lever 31 which is controlled by a link 35 on a
trunnioned nut 34 on a threaded shaft 33. To disconnect the
contacts 12 from the fixed bus-bar contacts 10 the shaft 33 is rotated
to move the nut 34 to the right so that the carriage 22 is moved in
the same direction guided by its projecting pins 24, 25 sliding
between rails 26. When the Fig. 5 position is reached the pins 24
engage abutments 40 on rods 38 which may be turned through 90
degrees to disengage the abutments 40 and move abutments 39
behind the pins 24. If the rotation of the shaft 33 is now continued a
conducting blade 19 engages an earthing contact 48 to earth one
side of the circuit-breaker 18. If instead the rotation of shaft 33 is
reversed the abutment 39 prevents the return to the Fig. 1 position
and the complete movable portion 14 is withdrawn to disengage
the isolating contacts 11, 13. The movable portion 14 may be locked
in the operative (Figs. 1 and 2) position by bolts 41 engaging blocks
47 in the fixed portion, the bolts being controlled by a shaft 45
through links 42, 43, 44 and interlocked with the circuit-breaker 18.
NO NO
GB792433 A
Improvements in
and relating to
withdrawable
electrical
switchgear
THOMSON HOUSTON 1955GB-0030940
19551028
Metal-clad switchgear, particularly of the kind wherein a circuit-
breaker unit 1 after lowering for isolation can be withdrawn on
wheels 2, has the secondary wiring 5 between the unit 1 and
terminal box 6 of the fixed structure arranged in rigid metallic tubular
members 7a, 7b pivoted to the two portions and to one another at 9.
NO NO
US2792461 A
FR1147964 A
Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1954US-0476104
19541220 NO NO
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GB777059 A
Improvements
relating to voltage
grading in high-
voltage insulation
REYROLLE A 1954GB-0018667
19540625
An insulator separating two electrodes between which a high
potential exists in service has at least one interstice therein extending
between and communicating with the electrodes and filled with a
liquid of high dielectric strength and of such conductivity as to pass
between the electrodes a small in-phase leakage current
comparable in magnitude with the quadrature leakage current. A
bushing insulator 40 (Fig. 3) surrounding a conductor 41 is enclosed in
porcelain sleeves 42 which are, supported at their inner ends by an
earthed metal supporting flange 44 and at the outer ends by metal
end caps 45. The annular spaces 46 between the bushing and the
sleeves are filled with a resistive liquid which is in contact both with
the end caps 45 and the flange 44. Alternatively the bushing may be
formed with a number of tunnels which are filled with resistive liquid.
A suspension insulator 50 (Fig. 4) may comprise a core 51 carrying
metal end fittings 52 and enclosed within a porcelain sleeve 53
which is held by metal caps 55 connected with fittings 52. The
cylindrical space 56 between the core and the sleeve is filled with
resistive liquid. Alternatively, the suspension insulator may have an
axial bore or a helically-extending tunnel communicating with the
metal end fittings and filled with resistive liquid.
NO NO
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GB753379 A
Improvements
relating to electric
switchgear
REYROLLE A 1954GB-0009187
19540329
A bus-bar junction chamber comprises a moulded box 10 of
synthetic resin on which is mounted a tee-off terminal 19, accessible
from outside the box and provided with insulation 17 moulded
integrally with the box, and a metal connector 14 mounted within
the box to interconnect adjacent ends of a pair of aligned bus-bars
12 and connected to terminal 19 by a conductor 21 embedded in
the box. Each terminal 19 may be mounted in an orifice 11 formed in
the insulation 17. Apertures 13 are provided in the sides of the box for
the passage of busbars 12 and each aperture may be formed half in
a side wall of the box and half in the wall of an insulating dished lid.
Insulating partitions separate the connectors 14 for the different
phases and the box may be filled with oil. The exterior of the box
may have an earthed metal coating and the bus-bars 12 may be
encased in a single block of moulded synthetic resin. In an
alternative arrangement the box may be deeper and may be
provided with a flat metal lid. In a modified form (Fig. 7, not shown),
two bus-bar connectors may be provided for each phase, the
connectors being mounted close to the opposite side walls and
interconnected by conductors in the base of the box, each
connector being arranged to receive the end of only one bus-bar.
NO NO
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GB769406 A
Improvements in
metal-clad electric
switchgear
THOMSON HOUSTON 1954GB-0006380
19540304
In metal-clad switchgear of the withdrawable type, contacts are
provided on the fixed part of the gear which are spaced apart by a
distance equal to that between the circuit-breaker terminals 18 and
which are connected respectively to a bus-bar, to earth and to a
circuit which is, in a predetermined position of the circuit-breaker,
controlled by the circuit-breaker, a separate potential transformer
terminal being provided in electrical connection with, but remotely
situated from, the circuit contact, the arrangement being such that
by a process of withdrawal, transverse movement, and entering, the
circuit-breaker 15 can be caused to control the earthing of the bus-
bar or of the circuit without the removal of any other component
from its normal operative position. The fixed position of the gear may
comprise duplicate bus-bars 2 3 having contacts 10, 11 arranged
each side of circuit contact 9. Earthing contacts 12, 13 are arranged
adjacent contacts 10, 11 respectively, and a further contact 14 is
provided which is connected to circuit conductor 6 between a
cable entry box 4 and current transformers 8. A voltage transformer
19 is connected to conductor 6 via a terminal 20 engaging fixed
contact 21. By lowering the circuit-breaker on its truck 16, moving the
carriage 17 on which it is mounted and raising the circuitbreaker,
terminals 18 may be caused to engage any two adjacent fixed
terminals 9 to 14. Specification 686,684 is referred to.
NO NO
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GB749848 A
Improvements
relating to electrical
terminal chambers
FERRANTI 1953GB-0021120
19530730
A terminal box 10 is secured to the flange 13 of a transformer of a
certain rating by one flanged and apertured face 11, the opposite
face 21 also being flanged and apertured to correspond to a
transformer of a different rating and terminal spacing, so that when
the transformer is changed the terminal box is retained but its
position reversed so that the face 21 is now clamped against the
transformer of different rating. The face 31 of the box is apertured at
33 and a cable box 32 is secured to the box by studs 34 which are
unscrewed before the terminal box is reversed, and screwed back
again to secure the cable box to the terminal box again when the
latter is in its new position. The connections between the cables and
the transformer terminals are made by flexible links 43. The aperture
not in use is blanked off by a plate 27 or 17 and a gasket 28 or 18,
and an inspection cover 42 is provided on the face 41.
NO NO
US2760020 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1953US-0331265
19530114 NO NO
GB721588 A
Improvements
relating to electrical
switch gear of the
enclosed metal-
clad type
UNITED ELECTRICAL 1951GB-0000779
19510111
In a switch of the enclosed metal-clad type having a spindle 7
carrying the movable contacts 2 and a handle 10 loosely mounted
on the end of the spindle, the spindle is wholly enclosed in the box,
the handle extends through a slot in the lid 4, and in the closed
position of the switch, the knob 12 on the end of the handle lies in a
recess in the lid. The arrangement is such that the lid cannot be
opened when the switch is " on." The handle 10 has a sector 13 with a
recess 16 which engages and drives a dog. 17 fixed to a sleeve 13a
itself fixed to a coupler 15 loose on the spindle 7 and controlled by a
compressionspring link 21 movable over dead-centres. The coupler
moves between ears 24a, 25 on a member fixed to the shaft 7 and a
spring 24 biases the shaft to the " off " position.
NO NO
US2615775 A Outdoor metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1947US-0783170
19471030 NO NO
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US2501345 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1947US-0751892
19470602 NO NO
US2554240 A Outdoor metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1947US-0744806
19470430 NO NO
GB641951 A
Improvements in
metal clad electrical
switchgear having
testing
arrangements
HERBERT SPEAR
CLIFFORD
THOMSON HOUSTON
1947GB-0011651
19470430
To permit accurate routine power-factor testing of a laminated-
paper insulator bushing 7 having a conductor 6 connected to an
underground cable 4, means are provided for disconnecting the
conductor 6 from the cable 4 to prevent the cable-capacitance
affecting the test results. The oil or compound-filled cable entry
chamber 1 has an extension 8 supporting a cylindrical insulator 9
which carries a sleeve contact 12 connected by a conductor 13 to
the conductor 6, the other end of which is connected to a circuit-
breaker terminal. A further insulator 15, located in the contact 12,
supports a terminal block 16 connected to the cable terminal 5 and
carrying a socket contact 17. Normally, a hollow bridging-contact 18
screwed into a shoulder 14 on the contact 12 connects the latter
with the contact 17 but can be removed to disconnect the circuit for
testing the bushing 7 by inserting a key down the insulator 9, the key
having projections which engage recesses 21 in the contact 18. For
applying testing voltages to the cable 4, the plug contact 22 of a
voltage transformer may be pushed into the bridging contact 18, or
the cable may be tested independently of the remainder of the
gear by inserting an insulated probe into the socket contact 17 after
removing the contact 18.
NO NO
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GB618558 A
Improvements in
metal-clad
electrical
switchgear
DAVID REGINALD
DAVIES
VICKERS ELECTRICAL
1946GB-0032749
19461104
In a modification of the switchgear structure of Specification 492,395,
the fixed contact 2 of the circuit-breaker in each phase is mounted
on the upper end of two bushings 3, 4, which extend through the
breaker tank at or near the base thereof, and through fire-proof
flooring 5 to emerge on opposite sides of a fire-proof wall 6, where
they are connected with main and reserve bus-bars 7, 8,
respectively, through isolating switches 9, 10, which are preferably of
the construction disclosed in Specification 618,559.
NO NO
US2473861 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC
1946US-0676895
19460615 NO NO
US2345033 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC &
MANUFACTURING
1942US-0430703
19420213 NO NO
US2340082 A Metal-clad
switchgear
WESTINGHOUSE
ELECTRIC &
MANUFACTURING
1941US-0392887
19410510 NO NO
GB526975 A
Improvements in
duplicate bus-bar
metal clad
switchgear
ARTHUR CHARLES
GIBSON
HAROLD ERNEST COX
THOMSON HOUSTON
1939GB-0009979
19390330
The plugging contact 8 of the circuit-breaker 11 is adapted
selectively to engage either of the sets of contacts 5, 6 pertaining to
the duplicate busbars 2, 3. The breaker 11, which may be of the air-
break type as described in Specifications 522,290 and 522,291, is
mounted on a frame 10 which is pivoted at 12 to links 13 on a shaft
14, which is rotatable by means of a lever 15 co-operating with
detents 16. The breaker is withdrawn for isolation by rotation about
pivot 12 by means of a linkage 17, 18, the common pivot of which is
engaged by a cam 19 operated by a handle 20, the lever 15 being
then actuated upwards from the position shown to change the
busbar-connections. The weight of the structure is counterbalanced
for horizontal and vertical movement by springs 24, 23, respectively
operating in tension and compression, and the breaker is itself
actuated by the handle 21 and flexible cable 22. The cable contact
7 is engaged by either limb of the lower contact 9.
NO NO
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GB518398 A
Improvements in
metal clad electric
switchgear
ARTHUR UPTON
SWITCHGEAR &
COWANS
1938GB-0027974
19380926
The figure shows the inspection-position of a vertically-withdrawable
circuit-breaker which is put in the operative position by operating the
lowering-gear j to bring the top plate i on to the tank l; the
supplementary side brackets m are then removed from sockets n in
the side-arms f, which, when the breaker has been wheeled into
place, are then brought beneath the projections h, and the gear j
operated to raise the arms f in the guides g. The tank may have
wheels, but, as shown, a truck b is employed and can be removed
to give place to a plug-in potential or current transformer. Instead of
brackets m, the attachment arm supporting the breaker in the
operative position may be swung outwards through 180 degrees
about a vertical axis so as to support the top plate also in its
withdrawn position.
NO NO
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GB517230 A
Improvements in
metal clad electric
switchgear having
isolating elements
EUGENE DAVID REGIS
THOMSON HOUSTON
1938GB-0021811
19380722
A disconnecting or isolating device in or for metalclad switchgear,
comprises a metal rod 1. having contacts 2 at each end, and
surrounded by an impregnated tube 3 of fibrous material, which is
embraced by an insulating member 8 carrying an earthed metal
casing 7 in which are slidably supported the insulating tubes 6. The
end conductors 4, 5 are adjustably carried in the tubes 6 by three or
more bowed springs 11, and restrained against endwise movement
by pins 12. The tubes 6 also carry racks engaged by spur wheels 3 for
simultaneously moving them towards or away from the co-operating
contacts 10, the Fig. showing, however, the lefthand tube in
connecting, and the right-hand tube in isolating, position. Swinging
links may engage pins on the end conductors for operating them.
The secondary of a current transformer may be located directly on
the insulation 3, the casing 7 being divided to allow it to be mounted
in place. The operating mechanism is at earth potential, and for
adequately insulating it from live parts, the end conductors may be
formed by metal inner surfaces of tubular insulating elements. In the
telescoped position, earthed metal shutters may be provided at the
ends, whereby the device is completely enclosed in an earthed
casing. The end conductors may alternatively slide within the
intermediate conductor.
NO NO
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GB513494 A
Improvements in
metal-clad
switchgear
HERBERT SPEAR
CLIFFORD
THOMSON HOUSTON
1938GB-0010808
19380408
In an automatic shutter device for draw-out type switchgear,
wherein normally the pivotally mounted shutters are automatically
operated through a linkage to cover or uncover the fixed contact
orifices by withdrawal or approach of the moving switch part, the
shutters are each connected to the operating linkage through an
individual actuating link, the operative connection between which
and the shutter is a retractable but non-removable pin. Shutters 1, 2,
3 adapted to cover the spouts A, B, C of, for example, duplicate bus-
bars and a circuit chamber, respectively, have wing plates 4 by
which they are pivoted at 5. Each shutter has an individual actuating
link 9 pivoted at 5, pivotally connected to a common link 6 at one
end, and, at its other end, adapted to be detachably connected to
the corresponding shutter at a point 10 by means of a spring biassed
pin Fig. 2a. The pin may be retracted manually and then rotated
when it will be held in the retracted position so breaking the
mechanical connection at point 10. Normally, all three pins will be in
their operative position so that the shutters will be operated together
as a roller 12 of the movable-switch part moves on to or from a ramp
lever 7 pivoted at 8 and connected at its other end to lever 6. When,
however, it is desired to earth, for example, the bus-bar
corresponding to spout B by means of a detachable earthed
extension plugging contact 15 on the moving switch part, the
shutters 1, 3, are disconnected at 10 from their actuating links 9, and
an extension 16 is provided on the ramp 7 so that the shutter 2 is
lifted earlier to enable the extension plugging contact 15 to enter
spout B. The shutters may be padlocked at 14 in the " spout-closed
position.
NO NO
US2175854 A Metal clad
switchgear
WESTINGHOUSE
ELECTRIC &
MANUFACTURING
1937US-0180389
19371217 NO NO
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US2276653 A Metal clad
switchgear
WESTINGHOUSE
ELECTRIC &
MANUFACTURING
1937US-0176264
19371124 NO NO
GB505606 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
HENRY WILLIAM
CLOTHIER
REYROLLE A
1937GB-0031349
19371115 NO NO
GB505638 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
REYROLLE
1937GB-0031343
19371115
A sluice valve for separating adjacent bus-bar sections of oil or gas-
filled electric switchgear, comprises a pair of plates E<6> connected
by toggles to a pair of rods E<3> mounted on the ends of a cross-bar
which is carried by a nut E<2> threaded on a spindle El. When the
plates E<5> are brought against stops E<5> at the base of the valve
chest, further downward movement of rods E<3> presses the plates
against the walls E<7>. In another form, Fig. 6 (not shown), a single
plate is employed and is pressed into position by a pair of wedges
operated from the top of the chest.
NO NO
US2151756 A Metal-clad switch
gear
WESTINGHOUSE
ELECTRIC &
MANUFACTURING
1937US-0168203
19371009 NO NO
17/140
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GB500878 A
FR841989 A
Improvements in or
relating to metal-
clad electric
switchgear
GEORGE DONALD
CLOTHIER
HENRY WILLIAM
CLOTHIER
REYROLLE A
1937GB-0022388
19370814
A switchgear structure comprises a horizontally-withdrawable, main
circuit-breaker B which is adapted to connect bus-bars X, Y, Z on the
fixed part A of the gear with a feeder or power transformer (not
shown), by means of inter-engaging plugs F<SP>1</SP>, F<SP>2</SP>
on the movable part, 13 and sockets G<SP>1</SP>, H<SP>2</SP> on
the fixed part A, arid connectors D<SP>1</SP>, D<SP>2</SP> in the
form of metalsheathed cables having as the insulation a pulverulent
mineral insulating material such as magnesia. The cable ends are
sealed bv a ceramic or other insulating bushing E<SP>6</SP>, Figs. 1,
3, which is fitted in the manner described in Specification 496,731 by
means of the tool shown in Fig. 4. A conical-ended compressiontip or
die P is mounted in a compression-head P<SP>2</SP> and threaded
on the board conductor-end E, whereupon nuts P<SP>3</SP> are
rotated on the bolts P4 to force the die towards the powder
insulation E<SP>2</SP> and spread it, at the same time expanding
the sheath-end within the limits allowed by the part P<SP>6</SP> of
the clamp P<SP>5</SP> which grips the sheath E<SP>1</SP>. The die
is replaced by the bushing E<SP>6</SP> which is forced by the head
P<SP>2</SP> into firm engagement with the powder E<SP>2</SP>,
with intervening insulating compound, if desired, and the sheath-end
is then swaged or burred over the bushing, Figs. 5, 6 show two
alternative ways of connecting the isolating sockets to the busbars,
the former being suitable where bus-bar sections are peculiar to a
switchgear panel and the latter where the sections extend between
sockets on adjacent panels. In Fig. 5, a metal sleeve Q<SP>2</SP> is
welded on to the sheath at a cutaway part thereof and insulating
mineral powder rammed into the sleeve around a short conductor Q
which is welded to the bus-bar E. An insulator Q<SP>3</SP> is then
applied in an analogous manner to that of Fig. A and a nut Q4 with
the socket Q<SP>5</SP> attached is threaded on conductor Q. In
Fig. 6, the bus-bar-sections ends R<SP>1</SP>, R<SP>2</SP>, with
insulating bushings E<SP>6</SP> attached as in Fig. 4, are clamped in
orifices in a metal box R by means of screwed glands R3, the ends of
the bus-bar conductors E being clamped to a metal fitting
R<SP>4</SP> from Which the socket R<SP>5</SP> projects into a
ceramic plug R<SP>6</SP>. An opening, closable by a screw-plug
R<SP>8</SP>, is provided for insertion of insulating compound or for
ramming in insulating powder. The latter may be steatite, according
to the Provisional Specification.
NO NO
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GB492395 A
Improvements in
metalclad electrical
switchgear
DAVID REGINALD
DAVIES
VICKERS ELECTRICAL
1937GB-0009803
19370406
Polyphase metal - clad switchgear having main and auxiliary bus-
bars and selector switches therefor, examples of which are
described in Specifications 345,303, 395,088, 416,704, and 463,987,
comprise a plurality of single-break oil circuit-breakers 1 arranged in
a row (in a plane which is normal to the plane of the paper in the
drawing) and separated by horizontal fireproof flooring 31 from the
busbar sets 24, 25, which are disposed, preferably as two vertical
stacks, substantially vertically beneath said row of breakers and run
parallel therewith, and are separated from each other by a fireproof
wall or barrier 33. The selectors 20 of each breaker are connected by
conductors in condenser-bushings 16, 17 passing through holes 32 in
the floor 31, to a T- connector 15 in an oil or compound-filled casing
30, which rests on the floor 31, and supports the breaker oil-tank 2.
Oil-immersed cableisolators 11 are separated from the cables 12 by
the flooring 47 or by an auxiliary wall, as 43, beneath or behind which
is a potential transformer 40, which is preferably connected to the
cable by oil-immersed switching means as describedin Specification
470,213. Condenser-bushings are also provided in the cable
connections at 9, 37, 41 where these enter oil-chambers, and at 22
for the bus-bar oil-chambers 49, and for the bus-bars themselves
where they enter chambers 49. The chambers 49 may, alternatively,
be compound-filled. A fireproof wall is provided at 44 and operating
mechanism 26, 27, 29 is provided for the selectors. The latter have
earthing contacts 50, and earthing and testing contacts 53, 51 are
provided for the cable. The Specification refers also to the T-
connections to the bus-bar selectors being effected in oilfilled
chambers.
NO NO
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GB470213 A
Improvements
relating to
metalclad
switchgear
DAVID REGINALD
DAVIES
VICKERS ELECTRICAL
1936GB-0019937
19360717
A potential transformer 9 in a metal-clad switchgear is located on
top of an oil tank having an elongated opening 12 through which
projects a terminal 10 of the transformer, the arrangement being
such that by moving the transformer casing horizontally connection
and disconnection can be effected between the transformer and
an enclosed conductor of the switchgear. Two alternative positions
for the transformer are shown. In one, it is mounted above a tank 5
containing the isolating switch 4 ; in the other position it is mounted
above an additional tank 6 placed between the cable sealing box 2
and the isolating switch. In each case, the transformer casing is
movable on rails 7 and carries a plate 15 which covers the slot 12 in
any position to which the transformer mav be moved. In the
disconnected position of the transformer, the terminal 10 may
engage an earthing terminal 16.
NO NO
GB467937 A
Improvements in
metal clad oil-filled
electric switchgear
CHARLES CORNFIELD
GARRARD
GENERAL ELECTRIC
HERBERT JOHN
COATES
1936GB-0009880
19360403
A valve for permitting oil to be drained from, or pumped into, a
chamber of an electric switchgear structure, comprises a plug 45
screwing into a housing 46 so as to clamp a member 47 on its
seating, the member being rotatable relatively to the plug. The valve
is screwed home initially by an attachment comprising a spindle 49
with a flange 50 adapted to be secured to the plug, a packing
gland 67, and squared operating end, the whole being contained in
housing 51 carrying a nipple for connection to the sump or pump.
When the plug is screwed down, the attachment is removed, and a
twohandled lever 48, Fig. 5, is clamped to the plug to screw it tightly
home. The reverse ,process occurs in opening the valve, lever 48
being employed to loosen the plug and the attachment applied to
unscrew it.
NO NO
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GB472656 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
NORMAN RISPIN
BLANCH
REYROLLE A
1936GB-0009118
19360327
Metal-clad switchgear comprises in combination, two separate but
adjoining chambers respectively containing two contacts to be
connected together or isolated from one another, an insulated
conductor mounted on a ball-joint in the chamber-dividing wall so
that its ends project respectively into the two chambers, and means
for rocking the conductor about the ball-joint from an operative
position in which it interconnects the contacts into an isolating
position. Fig. 1 shows one phase of a threephase panel, the other
phases being disposed in a line behind that shown. The breaker A
has fixed contacts A<3>, A<4>, adapted to be connected to a
feeder contact B<1> and bus-bar contact C<1> by insulated
conductors, which are mounted in ball.-joints J in the tank-base A<2>
constituting the dividing wall between the tank and the chambers B,
C. The latter are separated by a wall D, which may leave them in
open communication with one another, and have inspection
windows B<3>, C<3>, and earthing contacts B<2>, C2. The contacts
A<3>, A<4> may have baffle-type arc-control devices and the
moving contact A<5> may move vertically or, as shown, horizontally
about a vertical axis. The insulated conductor comprises, Fig. 2, sets
of butt contacts E<1> interconnected by flexible leads E and
provided with control springs E<2>, which abut on partitions F<2>
seated in a metal tube F<1> about which condenser-insulation F is
wound. To prevent passage of oil through the tube F<1>, a block G,
peripheral rubber ring G<1>, and screwed gland ring G<2> are
provided. The spherical body J is fixed on sleeves H, H<1> by means
of ring H<2>, and engages the inner surfaces of annular blocks K,
K<1> which are secured together by bolts K<2> alternating with bolts
K<3> for attaching, with intervening packing, the block K<1> to the
wall A<2>. A rubber ring K<4> and gland ring K<5> are also provided,
and the two conductors are conjointly operated by mechanism L.
The invention is applicable also to a duplicate bus-bar arrangement
with a separate conductor for the cable, which is provided with an
earthing switch, Figs. 3, 4 (not shown), and a bus-bar-sectionalizing
switch with spring- butt contacts on the ends of the sections
cooperating with rigid contacts on the insulated conductor, Fig. 5
(not shown).
NO NO
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GB472218 A
Improvements in
and relating to
electric switchgear
THOMSON HOUSTON 1936US-X472218
19360124
In electric switchgear in which the circuitbreakers 2 are isolated
without withdrawal, the current transformers 13 carry contacts and
are movably mounted so that they serve as disconnect switches. In
the arrangement shown, one terminal 14 of the transformer is
pivotally mounted on a bracket 27<1> and is connected by an
insulated conductor 16 to one of the terminals 2<1> of the
corresponding circuit-breaker 2. The other terminal 18 of the
transformer co-operates with a stationary contact clip 19 connected
by a conductor 21 to one of the bus-bars 11. The three transformers
for the three phases are mounted in a common yoke piece 27,
pivoted to the brackets 27<1>, and are operated together by means
of a hand wheel 24 through a worm 22, worm wheel 23 and toggle
linkage 26. In a modification, the current transformers may be
arranged to be moved or elevated bodily so that both terminals are
removed from engagement with the associated stationary terminals
in the isolated position.
NO NO
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GB468636 A
Improvements in
draw-out electric
switchgear
EUGENE DAVID REGIS
HAROLD ERNEST COX
THOMSON HOUSTON
1936GB-0000704
19360108
Draw - out switchgear comprises a single - break circuitbreaker with
a horizontallymovable contact on the movable part of the gear,
and the connections to the breaker from the plugging contacts
leading to the bus-bar and feeder chambers are arranged in a
single casing containing the breaker. The casing may be subdivided
to obtain the requisite isolation of the connections from the breaker.
In a horizontallywithdrawable arrangement, in which the feeder
chamber 1 is vertically above the bus-bar chambers 2, 3, the
movable part 5 contains an upper compartment containing the
breaker 10 and a lower compartment separated therefrom by a
partition 16 and containing the bus - bar connections, which, with
the duplicate bus-bar arrangement shown, include a selector 11. The
plugging contacts 4, surrounded by insulating enclosures 6, co-
operate with contacts on the movable part 5, the feeder
connection being mounted on an insulator 14 carrying an explosion
pot 13 in which is the fixed breaker contact. The movable contact 12
slides in a contact 15 connected to the selector 11. If chamber 1 is
below chambers 2, 3, the arrangement of part 5 will be inverted, and
instead of the removable inspection lid 19, an inspection opening is
provided in the breaker compartment whereby access may be had
after removing the oil therefrom.
NO NO
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GB471710 A
Improvements in or
relating to electric
metal-clad high-
tension switch gear
STRAUSS FRIDA 1935DE-X814407
19351202
In high-tension metal-clad switchgear, the parts are insulated by
means of urea-aldehyde condensation products containing a filler.
The filler may be an inorganic substance, such as asbestos, talc,
chalk or gypsum, or an organic fibrous material, such as cellulose,
linen, cotton, artificial silk, wool or hair. In the duplicate bus-bar
horizontally-withdrawable switchgear shown, the bus-bars 7, 8 are
enclosed in tubes 12 and separated by U-shaped sheets 15 of the
insulating material, the phases are insulated from one another by
walls 22 of the insulating material, and the insulation with respect to
the casing is effected by U-shaped plates 21, the phases of the
power switch 4 are also insulated from each other by U-shaped
plates 23 of the insulating material, and supporting insulators formed
of two coaxial tubes of the insulating material may also be used in
the installation. Reference has been directed by the Comptroller to
Specification 354,174, [Group V].
NO NO
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GB459869 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
REYROLLE A
1935GB-0020282
19350716
Metal-clad switchgear is arranged in panels disposed side by side
and respectively associated with the individual circuits, each panel
comprising a group of single-phase, liquidinsulated breakers one for
each phase mounted one above the other in the front of the gear,
and fixed chambers behind the breakers containing the connections
from the breaker contacts to the associated circuit, thus providing
economy of floor space without necessitating undue increase of
headroom. Three single-phase, horizontally-withdrawable, oil
breakers J are placed one over the other in front of the gear to
constitute a panel, and a number of panels are arranged side by
side, each being allocated to a feeder or other circuit. The movable
contacts N<3> are carried on brackets N<4> which are carried by
the operating mechanism O, and the several operating mechanisms
are releasably linked at O<2> to a common operating rod O<1>
whereby each breaker may be unlinked and run out for inspection
purposes. The platforms K are apertured at K2 so that the top J4 of
the tank J<1> of the withdrawn breaker may readily be removed for
inspection of an arc-control device N containing the fixed contact.
The latter and the contact N<3> are in sliding engagement with
conductors L, L<1> which extend through bushing insulators M, M<1>
into engagement with socket contacts P<2>, Q<2>, located in orifice
insulators P<1>, Q<1> in the fixed oilfilled feeder and bus-bar
chambers P, Q, respectively. Isolating and earthing switches P<3>,
Q<3> for contacts P<2>, Q<2> are actuated from a common rod
S<2> through the rod S and lever S<1>. An earthing switch T for the
contact U<2> of each cable U is connected to a common rod T<1>
which is suitably interlocked with rod S<2>. Breakers of the character
disclosed in Specification 459,868, can be used and can be fixed to
the gear, isolation being then effected solely by switches. In Fig. 1
(not shown), there is diagrammatically illustrated an arrangement in
which isolation is effected solely by horizontal withdrawal of the
breakers. In this form also the breakers are of slightly modified
construction and a current transformer is arranged in each feeder
chamber. The Specification describes forms of arc-control device
employed in both constructions of gear.
NO NO
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GB458431 A
Improvements in
metal-clad electric
switchgear
CYRIL FREDERICK
GIMSON
EUGENE DAVID REGIS
THOMSON HOUSTON
1935GB-0017740
19350620
A single-phase metal-clad switching unit comprises a single-break
explosion pot circuitbreaker with horizontal contact separation
mounted above a chamber or chambers containing fixed contact
structures associated respectively with the bus-bar and the circuit to
be connected thereto through the breaker, and vertically-movable
isolating members for effecting the connection between the
contacts of the breaker and the contact structures aforesaid. The
explosion pot 2 is mounted on a bushing insulator 3 supported with
liquidtight joints by the chamber 1 containing the operating
mechanism 26 of the co-operating movable contact 14. The
insulator 3 is kept filled with oil from chamber 1 and contains a fixed
isolating plunger contact 5 co-operating with a vertically-sliding rod
6 which is in engagement with a garter contact 4. A similar insulator
12 supporting the garter contact 13, in which the contact 14 slides,
contains a plunger contact 20, an isolating rod 19, and a garter
contact 18. The insulators 3, 12 are surrounded by current
transformers 24 and terminate in their respective chambers 8, 15
connected to the chambers 11, 17 of a cable 10 and bus-bar 16. For
polyphase gear, the chamber 15 may have three openings,
provided with cover plates, at different angles for connection to a
plurality of chambers 17. The upper ends of 6, 19 are threaded to
engage nuts 23 on insulators 21 secured to earthed rods 22, so that
by rotating a handle 23a the rods can be earthed at 22 and the
breaker itself inspected. Alternatively, rods 6, 19 may terminate in the
insulators 21 which may slide on rods 22 secured to the chamber.
Polyphase gear may comprise a number of separate singlephase
units, or a number of single-phase elements embodied in a common
outer casing.
NO NO
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GB453298 A
Improvements in or
relating to metal-
clad draw-out
electric switchgear
FRANK COATES
JOHN CHRISTIE
REYROLLE
1935GB-0016915
19350612
In order to prevent lowering of the flashover value of an orifice
insulator in metalclad, draw-out type gear, due to the accumulation
of dirt or moisture on its surface or to ionization of stagnant air
therein, means are provided whereby a current of clean, dry air is
caused to flow through the insulator around the insulated conductor
when the conductor is in its normal operative position within the
insulator. The orifice insulators B2, C<2> mounted on the bases of oil
or compoundfilled chambers B, C, normally house the insulating
bushings D<1>, E<2> of a verticallywithdrawable circuit-breaker A,
the bushings having collars D<2>, E<2> closing the lower ends of the
insulators. The insulator bases have outlets B<4>, C<4> to the
atmosphere and inlet passages B<3>, C<3> communicating with a
pipe F into which air, filtered at G<1>, is sucked by a motor-driven
fan G. The air is dried by silica gel or other hygroscopic material in a
vessel H, and a hair hygrometer or other electric alarm J stops the
fan if the air has too high a moisture content. The alarm J or a clock-
control acting at definite intervals may serve to change over to a
second vessel H, and connect the first vessel to a separate supply of
heated air to dry its contents. In the isolating position of the gear, the
doors closing the mouths of the insulators B<2>, B<3> are relied on to
keep out dust and moisture.
NO NO
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GB457816 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
REYROLLE A
1935GB-0016573
19350607
Metal-clad switchgear, suitable for voltages up to 66 kV., comprises
the combination with a number of main circuit-breakers controlling a
normally-closed ring circuit from which connections to external
circuits are teed off at points intermediate the breakers, of an
isolating switch chamber controlling each tee point and comprising
three contacts normally connected through insulated conductors
passing through the metal casing of the chamber respectively to the
external circuit and (directly or indirectly) to contacts of the
adjacent main breakers in the ring, and a rotary isolating switch
member in such chamber co-operating with the three contacts and
so arranged that it can be moved to connect together all three
contacts or any two of them. The three-phase, oil - immersed
breakers A are arranged in a row with the three phases in each
breaker arranged one behind the other. An intermediate upper
chamber C is arranged between each pair of breakers and a further
similar chamber C is arranged at each end of the row, each
chamber being partitioned at C<1> to separate the phases, and
having a float-operated, oillevel alarm C<2>. The intermediate
chambers contain contacts A<4> connected with the fixed breaker-
contacts A<2> over conductors in bushing insulators which are
provided with metal bellows A<5>, but in the end chambers C, one
contact is constituted by the contact F of the byepass cable F<3>.
Each external circuit E4 passes through a current-transformer case
E<6> and is provided with a contact E which is constituted, as are
also the contacts A<4>, by a bundle of spring-pressed plungers
making butt contact with the arcuate contacts D of the rotary
isolating switches. The fixed isolating contacts A<4>, E, F are
arranged at 120[<control>] with respect to the axis of the insulating
member D<1> carrying the isolating contacts D, and the latter
subtend an angle of slightly more than 240[<control>] and can be
rotated in either direction in 60[<control>] steps, thus providing six
positions, in three of which all three contacts are interconnected,
whereas in the other three, two are interconnected and isolated
from the third. Thus, each circuit E<4> can be connected to either or
both adjacent breakers, or can be isolated, leaving the ring
complete. Horizontal shafts G<1>, H<1>, J<1>, K<1> carry earthing
members G, H, J, K for earthing, on all three phases simultaneously,
the cable E<4>, the two contacts A<4>, and the byepass cable
F<3>, respectively. Three shafts G<1> . . . K<1> and the shaft D<1>
NO NO
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GB455291 A
Improvements in or
relating to liquid-
insulated metal-clad
electric switchgear
ARCHIBALD ALLAN
JAMES MIRREY
REYROLLE A
1935GB-0011723
19350416
In metal-clad switchgear of the kind in which an insulated bus-bar or
bus-bar section is mounted in a liquid filled conduit L extending
between liquid - filled end chambers A, B containing contacts A<1>,
B<1> with which the busbar co-operates, the busbar mounting
comprises end fittings for attachment to the end chambers, flexible
liquid-tight connections between the conduit L and the end fittings,
and a ball-joint between the bus-bar insulation and one end fitting,
the other end of the bus-bar section being free to slide in a support
which is carried by the end chamber at that end and is so arranged
as to permit of slight angular movement of the bus-bar section
therein. In the arrangement shown, the insulated bus-bar section
comprises flexible leads C mounted in a hollow insulator in the form
of a rigid metal tube D constituting the innermost layer of a
condenser insulator D<1>. The leads C connect butt contacts E
mounted at each end of the tube D, the contacts being pressed
outwardly by helical springs E <1> whose inner ends abut against a
partition D<2> in the insulator. In order to prevent the passage of oil
through the insulator from one end chamber to the other, a block F
threaded on the leads C carries on its periphery a rubber ring F<1>
which is pressed into engagement with the inner surface of the tube
D by a gland F<2>. On the outside of the insulator D<1> near the
chamber A is mounted a metal sheath G having a spherical outer
surface which engages internal spherical surfaces in a pair of
annular blocks H, H<1> which are pressed towards each other to
secure tight engagement with the sheath G by bolts H<2>. The block
H is bolted to an annular plate K connected by a short tube K<1> to
a flange K<2> which is bolted to the wall of the chamber A around
the orifice therein. Packing rings are provided to prevent the
passage of oil through the ball joint and the various bolted surfaces.
The metal conduit L is spaced away from the insulation at the end
near the chamber A by projections on the metal sheath G, and is
connected to a metal tube L<2> surrounding the ball joint by means
of a flexible-metal diaphragm L<1>. A flange L<3> on the tube L<2>
is bolted to the annular plate K. At the end near the chamber B, the
conduit L is attached to a flexible metal bellows M which extends
back around the conduit to a ring M<1> bolted to an annular plate
N which is connected by a cylinder N to a flange N<2> bolted to the
wall of the second chamber B. The bus-bar insulation at this end
carries a metal sheath O which can slide between the parts P, P of a
NO NO
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GB453857 A
Improvements in or
relating to electric
circuit-breakers
ARCHIBALD ALLAN
REYROLLE A
1935GB-0008554
19350319
A circuit-breaker for use in connecting a reactance between bus-
bar sections or other circuits comprises four fixed contacts G ... G3
immersed in insulating liquid in a tank E, two simultaneously operated
movable contactmembers K, K<2> each co-operating with a pair of
fixed contacts, and a third independently operated movable
contact-member K<1> cooperating with one fixed contact of one
pair and one fixed contact of the other pair. In the arrangement
shown, for controlling the connections of reactances N ... N<2> to
three-phase bus-bar sections B ... B<2> and B<3> . . . B<5>, separate
breakers are employed for each phase, the breakers being
arranged in a row and provided with two sets of operating gear C, D
located at opposite ends of the row. The contacts G<1>, G<2> of
each breaker are each provided with a pair of arc control devices H
of the baffle type, and are connected to the bus-bars, while the
contacts G, G<3> are provided with single arc control devices and
connected to the reactances. The bridging members K, K2 are
mounted on rods L<1> which are operated together, through rack-
and-pinion gearing, from a shaft C<1> connected to the operating
mechanism C. The bridging member K is mounted on a rod L<2>
operated by a shaft D<1> connected to the operating gear D. By
operating the gear C the two bus-bar sections may be connected
through the reactances, and the reactances may then be short-
circuited by operating the gear D. If the bridging members K, K<2>
are then moved to the open position, the reactances can be
isolated, while leaving the bus-bar sections connected together
through the bridging members K<1>. When the invention is applied
to enclosed metal-clad switchgear, the circuitbreakers may be of
the withdrawable type or the connections to the external circuits
may be made through longitudinally movable insulated conductors,
which can be withdrawn downwardly into the tank for isolating
purposes, as described in Specification 398,891.
NO NO
30/140
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GB451292 A
Improvements in or
relating to electrical
connectors or switch
contacts of the plug
and socket type
GENERAL ELECTRIC
HERBERT JOHN
COATES
1935GB-0007338
19350308
A plug-and-socket type coupling for withdrawable switchgear &c.
comprises a number of spring-pressed bars 10 that contact with two
separable members 1, 2, one attached to the metal-clad switchgear
&c. and the other to the bus-bars. The bars 10 are each riveted at
one end 13 to a spring 12 that bears centrally on a loosely mounted
cage 11 and at both ends on the bar 10. The spring is bent to form a
foot resting on a flange 14 on the member 2, and beneath the
flange is loosely held the inturned edge of the cage 11, the upper
end of which is fitted with a flange 20 that confines the extended
end of the spring 12. An insulating sleeve 7 attached to the member
1 surrounds the coupling. In a modification, Fig. 3 (not shown), a
double set of bars 10 is provided engaging the outside and inside of
tubular contacts corresponding to the members 1, 2.
NO NO
US2084893 A
Metal-clad
electrical switch
gear
GENERAL ELECTRIC 1934GB-X2084893
19340308 NO NO
31/140
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GB430494 A
Improvements in
metal-clad electric
switchgear
EUGENE DAVID REGIS
THOMSON HOUSTON
1933GB-0035585
19331218
Bus-bar selection in multiple bus-bar, withdrawable switchgear is
effected by providing on the fixed or movable part of the gear, sets
of axially-slidable plugging contacts 18, (one set for each bus-bar set
4, 5), adapted, (when the two parts are in operative relation), to
connect contacts on the movable part with contacts 6, 7 on the
fixed part, and simultaneously moving two of the sets of contacts in
reverse directions by a common operating means, such as handle 27
or a motor, accessible from the exterior of the casing without
disturbing any part of the casing. The contact sets are preferably
located in isolating chambers 15 on the movable part, and have
screw-threaded extensions 20, insulated at 21 from the conducting
parts, engaged by screwed sockets 25 which are coupled for
simultaneous movement by gear wheels 26 and chain gearing.
Sliding contacts 24 are connected by conductors 23 to the terminals
22 of the oil breaker, the operating- mechanism of which is shown at
16 and the racking-out motor at 17. 11 is a currenttransformer
chamber. For single-phase gear, a single contact 18 constitutes a
set, but for the three-phase gear shown, each set comprises three
contacts. The Provisional Specification refers also to individual hand
wheels for operating the plugging contacts.
NO NO
US2043113 A Metal enclosed
switchgear GENERAL ELECTRIC
1933US-0689424
19330914 NO NO
32/140
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Improvements in or
relating to metal-ARCHIBALD ALLAN 1933GB-0021908
Metal - clad switchgear comprises busbar sections normally
connected together to form a closed ring, in combination with a
circuit - breaker panel associated with each junction between the
sections and comprising a liquid-insulated breaker controlling a
teeconnection from the busbar to the external circuit. A liquid-filled
chamber associated with the breaker contains a switch or switches
for controlling the connections between the two busbar sections and
the breaker, whereby all three or any two thereof can be connected
together. As applied to a 66 kV. three-phase system, in which four
feeders H and two transformers H<1> are adapted to be connected
to the busbars, single-phase oil circuit-breakers A are arranged one
behind the other, Fig. 3 in two rows, Fig. 2, each row consisting of
three panels which correspond to two feeders and a transformer,
Fig. 4. The fixed contacts of each breaker A, Fig. 5, extend into
compartments in an upper oil-chamber Band carry contacts E, D
respectively connected to the feeder H or transformer connection,
and carrying an isolating arm D<1> which can be rotated to engage
either contact F, F<1> on adjacent busbar sections C or an earthing
contact D<2>. The contact F pivotally carries an arm F<2> which can
be moved into or out of engagement with F<1> for sectionalizing the
busbars, and is made arcuate so that in its engaging position, the
contact D<1> can be moved to and fro between F, F<1> without
breaking contact with the busbars. Switches G on a shaft or shafts
G<1> are provided for engaging the contacts F, F<1> to earth the
busbar sections provided they are disconnected at both ends, and
an earthing switch H<3> for the contact E is also provided. The
busbars C extend through chambers B from end to end of the rows,
Fig. 2, and are interconnected at the ends at C<1>, Fig. 3, to form a
closed ring. Each busbar C, Fig. 7, comprises an oil-conduit C
containing a conductor C<2> surrounded by impregnated paper
insulation C<3>, to which at one end of chamber B a metal flange
C<4> is attached in an oil-tight manner. At the other end the
insulation C<3> can slide freely through a gland C<5> to
accommodate temperature changes, or is connected to the
chamber wall by a flexible diaphragm, and the conduit is formed, as
with a corrugated part C<6>, for the same purpose. To inspect a
panel, the three breakers A therein are opened and the switches
D<1> moved to their earthing contacts D<2>. The switches D<1> of
the adjacent panels are then moved to engage the busbar sections
33/140
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GB420010 A
Improvements in or
relating to electric
switchgear
CATON GEORGE
HARLAND
ENGINEERING
HERBERT CATON
1933GB-0014602
19330520
A metal-clad oil-break switchgear unit comprises a tank 4, a circuit-
breaker head having contacts normally depending into the tank, a
superstructure 5 containing transformers and surmounting the circuit-
breaker head, and means forming a built-in component of the unit
for raising at will the superstructure or part of the superstructure alone
or along with the circuit-breaker head. In the arrangement shown in
Fig. 1, the tank 4 is mounted in a carriage 1 provided with wheels 2
running on rails 3, the unit being movable horizontally to bring plugs
19, 20 into or out of engagement with sockets 21, 22 on a pedestal
23. The circuit-breaker head 33 is bolted to the tank by a flanged
joint 6, and the superstructure 5 is in sections 29, 30 bolted to each
other and to the cover 11 and circuit-breaker head by flanged joints
31, 34 and 32 respectively. The superstructure houses a potential
transformer 26, fuses 27 and current transformers 28, and may be
filled with oil or insulating compound. On the flanged top 7 of the
carriage 1 are mounted four nutforming members 8, one at each
corner, which are engaged by screw-threaded rods 9 coupled at 10
to short rods 9<1> journalled in the cover 11. The rods 9<1> carry
sprocket pinions 14 interconnected for conjoint rotation by an
endless chain 13. The two front rods 91 carry worm-wheels 15
meshing with worms 16 on a horizontal spindle 17, which is journalled
in the cover 11 and is provided with a hand-wheel 18. By
disconnecting the joint 6, the circuit-breaker head and
superstructure 5 can be lifted bodily by rotating the hand-wheel, or
by breaking one of the other joints, the whole or a part of the
superstructure may be raised. In a modification, Fig. 4, the tank 4 is
clamped between the base of the carriage 1 and the circuit-
breaker head. In this modification one of the rods 9 is extended
upwardly through the top of the super. structure 5 and provided with
a hand-wheel 18<1>, and the circuit. breaker head and
superstructure can be raised and lowered only as a whole. The
current transformers 39 are incorporated in the terminal bushings of
the circuit-breaker head The superstructure chamber contains oil,
the level of which is below the upper ends of sealing tubes 38, 391
surrounding the operating spindle 40 of the circuit-breaker and the
rods 9 respectively.
NO NO
34/140
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GB410207 A
GB410206 A
US1990853 A
Metal-clad electric
switch gear
ARCHIBALD ALLAN
REYROLLE A
1932GB-0032529
19321117
1932GB-0032530
19321117
1932GB-X1990853
19321117
Metal-clad switchgear has in association with one or more main
circuit-breakers an isolating switch chamber comprising three
contacts mounted on insulators within the chamber, two conductors
carried by the first contact for connecting that contact to the other
contacts, at least one of such conductors being in the form of a
rotary isolating switch which can be moved to engage either the
second or third contact, and insulated conductors passing through
the casing for connecting the contacts to external circuits or
apparatus. The conductor of the first contact is longitudinally
movable during normal operation either to connect the first contact
to a contact of a main breaker or to isolate it therefrom. The
arrangements described for carrying out the invention are identical
with those described in Specification 410,206. Specifications 398,889,
398,890, 398,891, and 410,826 also are referred to.
NO NO
35/140
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GB400707 A
Improvements in or
relating to metal-
clad electric
switchgear
CHARLES CORNFIELD
GARRARD
GENERAL ELECTRIC
1932GB-0015967
19320606
In metal-clad switchgear comprising duplicate sets of bus-bars, and
associated circuit-breakers adapted to be withdrawn downwardly
for isolation purposes, the sets of bus-bars are segregated in two
ducts, passageways or rooms 1, 2 of fireproof material, and are
separated from the circuit-breakers by a fireproof floor or barrier 4.. In
the arrangement shown, the two ducts are separated from one
another by a fireproof partition 3, the bus-bars of each set being
arranged in separate oil-filled conduits 5, from which spout-like
members 6 pass through the floor 4. Conductors connected to the
busbars pass through the members 6 to sockets adapted to be
engaged by contact-plugs on the withdrawable part of the
switchgear, the arrangement being such that the three sockets
associated with the bus-bars of each set are disposed in a straight
line. The feeder 7 is connected through a current transformer
chamber 9 to three phase conductors arranged in oil-filled
chambers 10, each chamber being provided with a pair of
downwardly extending members 11 provided at their lower ends
with sockets arranged in line with the sockets associated with the
two sets of bus-bars. The sockets associated with each set of bus-bars
are adapted to be connected respectively to the sockets
associated with the three phases of the feeder through circuit-
breakers arranged in tanks 12, each tank being detachably
connected to a top plate 13 which carries the circuitbreaker. A
hydraulic or equivalent jack 16, for raising and lowering the
switchgear, runs on rails 17 mounted on a carriage 19 adapted to
run on rails 20, so that the jack can be moved transversely or
longitudinally to the various circuit-breakers. If each set of
circuitbreakers is provided with its own raising and lowering gear, the
feeder 7 may be disposed between the two sets of circuit-breakers.
NO NO
36/140
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GB391864 A
Improvements in or
relating to metal-
clad electric
switchgear
ALFRED DONKIN
JOHN CHRISTIE
1931GB-0030912
19311107
Switches, latching and unlatching; electricmotor actuation.-An
interlocking mechanism for preventing incorrect operation of the
individual switches of a system comprises a bar having slots or
projections which co-operate with slots or projections on the
actuating levers which are associated with the switches, the bar
being movable longitudinally by means independent of the levers in
such a manner as to prevent operation of any of the levers unless
the bar has previously been moved into a position appropriate to
such operation and to prevent movement of the bar into any
operative position unless the levers are in appropriate positions. In
the form shown, it is assumed that the levers 50-90, 120 actuate a
cable earthing switch, transformer, cable, reserve and main bus-bar
isolators, and a main circuit breaker respectively and the bar 100
which may be moved by handle 101 has five positions to permit
various circuit changing and other operations. The lever 50, Fig. 11,
has a slot which permits bar 100 to be moved except in the first
position when closure of the lever 50 locks the bar by engaging a slot
in it. Lever 120 is similar but the corresponding part of bar 100 has two
slots, positions 1 and 4, whilst lever 60, which also has one slot, may
be operated in any of positions 2 .. 5 since bar 100 has a slot
extending over a length corresponding to these four positions. Lever
70 has slots 75, 76, Fig. 5, and the corresponding part of the bar has a
slot so that it may be operated in the second position and has ribs
108, 109 so that the lever is locked off in the first but locked on
(thrown forward) in the third, fourth, and fifth. Lever 80 has slots 83, 84
and the bar has ribs 108, 110 so that lever is locked off in positions 1,
2, 5, closable in 3, may be locked off in 4 or locked on if lever 90 is
off. Lever 90 is similar to 80 but the bar has a rib for locking off in
positions 1, 2, 3, the operating slot is at 5, and the lever is locked off
at 4 or locked on if 80 is off. As an alternative to manual operation by
handle 101, a. reversible motor driving through a slipping clutch 252
may be provided to move bar 100 which has contact plates 276, 277
co-operating with brushes 271 .. 275 connected to a selector switch
for energizing the motor to move the bar to any one position
according to the position of switch arm 260. Motor 280 mounted with
the lever driving arrangements on bar 100 rotates shafts 287 or 288
through a right-angle according to whether clutch 282 or 283 is
engaged, and these shafts carry pin bearing arms 290, Fig. 11, which
engage, in the appropriate positions, levers 293 linked to the switch
NO NO
37/140
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GB387384 A
Improvements in or
relating to multi-
phase metal-clad
electric switchgear
JAMES MIRREY
REYROLLE A
1931GB-0022190
19310805
Horizontal draw-out pillar-type switchgear is provided with a quick-
make switch mounted in the tank of the main circuit-breaker for
connecting the fixed contacts on one side thereof together and to
earth, so that the apparatus connected to such contacts (for
instance, a trailing cable for use in mines) can be earthed without
withdrawing the breaker. The contacts D<1> of all the phases carry
contacts H which can be engaged simultaneously by the strap G<2>
of a U-shaped switch member G<1> pivoted in the cover B2. The
member G<1> is rotatable about its pivot by means of a shaft L<2>
and links M', M<3>, the shaft being in turn operated from a handle K
by means of a link L and lever L<1>. A dead-centre spring toggle N,
N<1> ensures the quick action. The member G<1> is connected by
means of a flexible conductor G<3> to a terminal J having a plug-
and-socket connection with an earthing bar on the fixed part of the
gear. Interlocks between the handle K and the handle F of the main
breaker comprise cams K<1>, F<1 >so arranged as to prevent both
switches being closed at once. A further cam K2 engages a latch O
to move it into a recess A<4> on the runway A<3> to prevent
withdrawal of the movable part (and consequent severance of the
earth connection of the cable) when the earthing switch is closed.
The latter may be locked in both the off position (shown in Fig. 4) and
in the on position by means of a padlock P, which passes through a
fixed arm P<1> and apertures in the cams.
NO NO
38/140
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GB374843 A
Improvements in
electrical
switchgear
ASSOCIATED
ELECTRICAL
INDUSTRIES
DAVID REGINALD
DAVIES
1931GB-0006501
19310302
In a metal-clad switchgear structure in which an oil switch or circuit-
breaker is adapted to connect the ends of a cable with busbars or
with the ends of another cable and in which a potential transformer
is adapted to be connected under oil with the ends of a cable or
other enclosed electrical conductors, a switch disposed within the oil
is arranged to isolate the potential transformer and to be thereafter
moved to earth the cable ends or other conductors. As shown in the
Figure, the transformer 20 is contained in an oil-filled casing 19 fitted
with terminals 21 projecting downwardly through the base, the
terminals 21 normally engaging, as shown, the ends of movable
blades of isolating switches which are pivoted to conductors 23
attached between the cable ends 5 and conductors 9 connected
to the primaries of the current transformers 12. The isolating switch
blades 22 may be rotated by link-work 25, 26 and insulating links 24
either to an intermediate isolating position 22a or to a lower earthing
position 22b in which they engage earthed terminals 28 for earthing
the feeder circuits. The isolating arrangements are completely
immersed in oil in the casing 6. The potential transformers 20 and their
cases 19 may be removed from the switchgear structure by raising a
trapdoor 29 and drawing them upwardly. They may thus be
completely isolated.
NO NO
US2022870 A Metal clad switch
gear
ROSSMAN SARGENT &
LUNDY PATENT
1930US-0486685
19301006 NO NO
GB360055 A
Improvements in or
relating to the
sealing of electric
cables in metal-clad
switchgear or like
electrical apparatus
JOHN CHRISTIE
REYROLLE A
1930GB-0023417
19300805
Cables E are sealed into metal-clad switchgear and like installations
by passing them through a cable gland F into a tubular insulating
chamber B containing oil and located inside the normal chamber A
for the oil-immersed isolating switches &c. An internal contact G is
connected to an external one G<2> by a stud G<1>, a washer H
preventing oil-leak. In a modification the tube B is in two parts,
provision is made for a current transformer, and the tube contains or
is in the form of a condenser insulator.
NO NO
39/140
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GB378163 A
Improvements in
and relating to
electric switchgear
THOMSON HOUSTON 1930US-X378163
19300630
A cylindrical plug and socket disconnecting device for trucktype or
metal-clad withdrawable switchgear, in which one of the contacts 7
is slotted longitudinally to form flexible contact fingers which are
provided with springs 13 for producing adequate contact pressure,
has one of the contacts 6 provided with an annular band 10 having
a convex contact surface 10a raised above the surface of the
contact, the band 10 together with the portion 14 of the other
contact 7 which is adapted to co-operate with the band, being
composed of a metal, such as silver, which has a low resistance
under substantially all conditions of operation.
NO NO
GB376369 A
Improvements
relating to metal-
clad electric
switchgear
THOMSON HOUSTON 1930US-X376369
19300307
An extra-high tension isolating switch forming part of a switchgear
equipment consisting of circuitbreakers, selector switches, &c.
comprises a fixed contact 35 mounted on an insulator secured to the
casing 31 and a double-ended movable contact-member 36, 39
mounted on the cover of the inner oil-filled casing 46 so that when
the casing is lowered the circuit is broken first under oil at the
contacts 35, 36 and then in air at the contacts 39, 40. The movable
contact-member consists of the contact 36 mounted on a stem
carried by the insulator 37 which is secured to the lid of the casing 46.
The casing may be raised and lowered by rotation of the screwed
spindles 51. As the casing is moved downwards for isolating purposes,
the circuit is broken under oil at 35, 36 and subsequently when the
contact 39 has left the elongated socket-like contact 40 mounted
on an insulator 43 a second series break in air is made. The oil-filled
casing may be lowered on to rails 54 and withdrawn completely. A
window in the outer casing enables the position of the isolating
switch to be seen. The isolating switch is shown in association with a
casing 7 containing a bus-bar selector switch in an oilfilled casing
communicating with a casing 45 surrounding the insulator 43.
Specification 376,325 is referred to.
NO NO
40/140
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GB353463 A
FR709426 A
Improvements in
metal-clad electric
switchgear
JOHN CHRISTIE
REYROLLE A
1930GB-0006075
19300224
In metal-clad switchgear for multi-phase extra high tension systems
the circuit-breaker units for the several feeders are arranged with
respect to one another that the bus-bar connections to the
circuitbreakers of each phase may be made by short conductors
surrounded by single-length condenser insulators. As shown in the
Figure, three singlephase circuit-breakers A<1>, A<2>, A3 for the first
threephase feeder, B<1>, B<2>, B<3> for a second similar feeder, and
C<1>, C<2>, C<3> for a third feeder, the circuit-breakers in each
phase (for example, the circuit-breakers A<1>, B<1>, C<1>) are
arranged in line side-by-side and the bus-bar in each phase is
constituted by a series of short conductors E<1>, which are
supported by single-length condenser insulators F<1>, in oil-filled
tubes G<1>. The series of short conductors constitute the bus-bar for
the corresponding phase.
NO NO
41/140
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GB327683 A
Improvements
relating to electric
switchgear
JOHN GALE WELLINGS
THOMSON HOUSTON
WILLIAM STANLEY
ADAMS
1929GB-0000254
19290103
In order to isolate the potential transformers of metal-clad
hightension switchgear, they are connected with the live conductors
5 by means of a connection secured to the cover 14 by means of an
insulating link 13 and removable with the cover. In this removal, the
fuse link 7 (which, as usual, forms part of the connection to the live
conductor) is connected to earth by engaging with spring contacts
10 mounted in the sides of the orifice in the earthed casing through
which the connection is withdrawn. In the fully withdrawn position, a
contact-member 12, detachably secured to the fuse by the bolt 23
and carrying at its other end a contact 24, normally abutting against
a fixed terminal contact 4 in the end of a hollow bushing 2, is brought
into engagement with clip contacts 6 mounted at the upper end of
the housing. This provides a circuit from the transformer primary
(connected to terminal 9 of the housing) through the current-limiting
resistance 8 which is wound round the housing and may serve as a
screen for preventing corona discharge as described in Specification
300,234, thence by a lead connection to the contacts 6, contacts 12
and to the fuse which connects with earth through the contacts 10.
Contacts 25, 26 may be provided on the cover and tank so that,
when the cover is removed, the secondary circuit of the transformer
is disconnected.
NO NO
GB309064 A
Improvements in or
relating to electric
switchgear
DERRICK KINGSBURY
REYROLLE A
WALTER JAMES COOK
1928GB-0000264
19280104 NO NO
US1859260 A
US1859088 A Electrical apparatus GENERAL ELECTRIC
1927US-0243977
19271231
1930US-0417940
19300102
NO NO
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GB301101 A
Improvements in or
relating to electrical
switchgear of the
metal clad type
DAVID REGINALD
DAVIES
VICKERS ELECTRICAL
1927GB-0019736
19270725
In metal - clad switchgear arrangements in which the casing of an oil
break switch, such as an isolating or selector switch contains auxiliary
apparatus such as a potential transformer, devices for use with such
apparatus as a fuse and limiting resistance, are arranged to be
disconnected and withdrawn through an opening in the switchgear
casing whereby they may be safely handled without putting the
switchgear out of service. As shown in Fig. 2 in which a potential
transformer 2 is mounted within an oil-filled casing 1 containing an
isolating or selector switch the fuse 23 and limiting resistance 24 are
mounted on a movable carrier 19 bearing contacts 29 engaging
fixed contacts 28. When it is desired to inspect or renew the fuse or
resistance the carrier 19 is raised to the dotted position by screw and
nut gear 13 operated through bevel gearing 21. The lid 11 of a hood
10 on being opened, enables any replacements to be effected.
During the raising of the carrier its contacts are disengaged from the
cooperating fixed contacts so isolating the auxiliary devices 23, 24.
Arrangements for earthing the carrier in its position may also be
provided. If it is desired to test the cable the carrier 19 may be
removed from its holder and replaced by a bracket 41 (Fig. 3)
carrying an insulated rod 43 terminating at its lower end in a spring
contact 44 for engagement with the fixed contact 28 passing to the
cable. Thus connection of the cable to external devices may easilv
be effected. A second bracket 45 acts as a stop to indicate the
correct position of the conductor 43 when lowered into contacting
position. Specification 196,369 is referred to.
NO NO
GB295749 A
Improvements in or
relating to electric
switchgear
HENRY WILLIAM
CLOTHIER
REYROLLE A
ROBERT ANDERSON
1927GB-0013485
19270519 NO NO
43/140
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GB284772 A
Improvements in or
relating to metal-
clad switchgear
DAVID REGINALD
DAVIES
VICKERS ELECTRICAL
1926GB-0027625
19261103
Sliding-switch-carriage arragements.-Truck type switchgear in which
the contact apertures on the fixed switchgear structure are
automatically closed by shutters on withdrawal of the movable
member and in which the shutters are locked against movement
while the truck is withdrawn, have mechanisms for effecting such
locking located within a hollow runway for the truck member
operated by a member carried by the movable truck or by
operating gear used for its withdrawal. As shown in Fig. 1 the contact
apertures 4 on the fixed structure are closed by hinged shutters 5, 6
when the truck is withdrawn, the shutters being raised as the truck is
moved into contacting position by an operating member 11 on the
track 1 which engages pins 10, 32 on the lower shutter 6 which is
linked to the upper shutter 5 by a bar 7. The bar 7 extends
downwardly and bears near its lower end, which is carried by a
pivoted link 13, a locking projection 18. This projection is engaged in
the position shown by a projection 19 on a rectilinearly-sliding rod 20
moved by a pivoted cam 23 engaging a pin 22 thereon. As the truck
is moved inwardly a depending arm 24 engages the end 27 of the
cam 23 so that the cam is rotated and the rod 20 is moved to
disengage the projection 19 from the projection 18 on the rod 7 so
that the shutters are freed for operating when engaged by the
projection 11 and the plug members 3 may pass into the apertures 4
and engage their corresponding socket members. Similarly the
shutters are lowered over the orifices 4 and locked in this position
during the withdrawal of the truck members. In a modification (Fig. 3,
not shown) the truck member carries a single operating member for
moving the shutters and also for engaging a locking pawl which
prevents their operation when the truck is withdrawn. The locking
mechanism may be arranged to operate automatically only on
withdrawal of the truck, the unlocking of the shutters being effected
by a separate key. Where the truck is withdrawn by a screw and nut
mechanism the locking device may be operated by an
independent floating screw or by a gear driven cam operated by
such mechanism.
NO NO
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GB245529 A
US1576347 A
FR604065 A
Metal-clad electric
switch gear
JAMES MIRREY
REYROLLE A
1924GB-0024122
19241011
Switchboards and like switchgear structures. In metal-clad
switchgear of the horizontal draw out type for use with duplicated
bus-bars, the busbar selecting switch or equivalent plug
arrangement is permanently mounted within the movable part of
the casing and is operated wholly from outside the casing. In the
construction shown in Fig. 1, the inner ends of the isolating plugs B, B'
on the sliding carriage are provided with contacts B<2>, B<3> with
one or both of which a switch member D may be brought into
engagement by external hand-operated worm gear acting through
links H<1>, H, F and E. An earthing contact J may be provided within
the casing with which the contact-member D may be brought into
engagement. The selector switch is interlocked with the oil switch or
the sliding carriage by means, for example, of a lock K<1> serving to
prevent movement of the linkwork operating mechanism and
controlled by an electromagnet K the energizing circuit of which
includes the auxiliary plugs L on the sliding carriage. In a modification
shown in Fig. 3, two contact arms D', D' are employed and are
operated in the desired sequence and to the necessary relative
extent to produce the selective bus-bar and earth connections
desired. The contact arms are each connected through separate
links D<4> to separate slotted members D', D' which are driven by
pins R' on the externally-rotated shaft. Two earthing contacts J<1>,
J<2> are provided in this form. Instead of contact-members of the
knife-blade type, centrally carried rectilinearly-sliding or rotating
contact-members may be used. In the construction shown in Fig. 8,
contact-members D<19>, D<20> of plug form sliding in sockets in a
member D<24> connected with one pole of the oil switch are
moved alternately into engagement with one or other of the bus-bar
contacts B, B<1> by means of a pinion D<23> externally operated
and engaging racks D<21>, D<22>.
NO NO
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GB238952 A
FR597372 A
US1659515 A
Metal-clad electric
switch gear
ARCHIBALD ALLAN
HENRY WILLIAM
CLOTHIER
REYROLLE A
1924GB-0013088
19240528
Oil-switches; switchboards. - In metal-clad oil-immersed switchgear
an upper oil-containing chamber A, Fig. 2, is provided for the bus-bar
isolating switch B, intermediate oilcontaining chambers F and F<1>
being provided respectively for an isolating- nonnection E, G
between the bus-bar isolating switch and one conductor J of the
main oil switch and for an isolating or selector switch P between the
other main switch conductor and an out-going cable &c. the main
oil switch being removable in a vertical direction. The arrangement
shown in Figs. 1 and 3 is for a three-phase supply employing
duplicate bus-bars, so that two bus-bars isolating switch chambers
are employed with each phase, the busbars passing into the
chambers through oilfilled pipes R and being arranged in
substantially the same vertical plane as the main oil switch. The
insulated connection D between chambers A and F are thus
duplicated being joined at their lower ends by bars E<1> carrying
contacts E bearing on the main switch conductors J. These contacts
E may be earthed by switch wiring E<2>. In each of the chambers
are two switches P, P<1> connected to the contact O on which
bears the other main switch conductor J'. The switches connect the
contacts 0 to fixed contacts P<2>, P<4> passing to duplicate cables
or other apparatus. The contacts P<2>, P<4> may be earthed when
required by switch arms P<6>. The main oil switch is provided with a
removable tank H<1> having an upper flange bolted to a top plate
M carrying the contacts which in turn is bolted to the lower sides of
the chambers F, F<1>. Lowering gear for the oil switches consists of a
winch N and wire ropes K passing over pulleys K<1> on the switch
links H<1>, the arrangement being such that the tanks themselves
and the links together with the top plate may be lowered, in the
latter case the isolating connections at the upper ends of
conductors J, J<1> being automatically broken. The plate M carries
the movable bridging contact-member H<3> with its operating
mechanism H<2> which extends upwards into the space F<2>
between chambers F, F'. Vent holes F<4> permit gases to escape
from the tank H into the space F<2> where they are led off by outlets
F<3>. Suitable interlocks between the various switches &c. may be
provided. Specification 110,808 is referred to.
NO NO
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GB238951 A
Improvements in or
relating to metal-
clad electric switch
gear
FRANK COATES
HENRY WILLIAM
CLOTHIER
REYROLLE A
1924GB-0013067
19240528
Switchboards.-In metal-clad switchgear of the draw-out type, the
tubular insulator forming part of the plug and socket isolating
contact is provided with a jacket or casing D which can be
attached to the transformer chamber A or other part of the main
casing by bolts and nuts E or other readily detachable means. The
insulator C is cemented within the jacket D and is confined between
a flange D<2> at one end and a packing ring compressed by a
collar H at the other. The socket B is fixed in the insulator.
NO NO
CA872973 A METAL-CLAD
SWITCHGEAR GENERAL ELECTRIC CA872973T 0 NO NO
CA861041 A METAL-CLAD
SWITCHGEAR GENERAL ELECTRIC CA861041T 0 NO NO
CA847478 A
VERTICAL-LIFT
METAL-CLAD
SWITCHGEAR
EQUIPMENT
WESTINGHOUSE
ELECTRIC CA847478T 0 NO NO
CA724294 A METAL-CLAD
SWITCHGEAR
ASSOCIATED
ELECTRICAL
INDUSTRIES
CA724294T 0 NO NO
CA664367 A METAL-CLAD
SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA664367T 0 NO NO
CA637223 A METAL-CLAD
SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA637223T 0 NO NO
CA623280 A METAL CLAD
SWITCHGEAR
MC GRAW EDISON
CANADA CA623280T 0 NO NO
CA622530 A OUTDOOR METAL-
CLAD SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA622530T 0 NO NO
CA574522 A METAL-CLAD
SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA574522T 0 NO NO
CA560842 A METAL-CLAD
SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA560842T 0 NO NO
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CA545566 A METAL-CLAD
SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA545566T 0 NO NO
CA494726 A OUTDOOR METAL-
CLAD SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA494726T 0 NO NO
CA487324 A OUTDOOR METAL-
CLAD SWITCHGEAR
WESTINGHOUSE
ELECTRIC CA487324T 0 NO NO
CA465321 A METAL-CLAD
SWITCHGEAR WESTINGHOUSE CA465321T 0 NO NO
CA443480 A METAL CLAD
SWITCHGEAR WESTINGHOUSE CA443480T 0 NO NO
CA385452 A METAL CLAD
SWITCHGEAR WESTINGHOUSE CA385452T 0 NO NO
CA373991 A METAL-CLAD
SWITCHGEAR REYROLLE A CA373991T 0 NO NO
CA258222 A
METAL-CLAD
ELECTRIC
SWITCHGEAR
REYROLLE A CA258222T 0 NO NO
JP2012095440 METAL-CLAD
SWITCHGEAR TOSHIBA
2010JP-0240164
20101026
PROBLEM TO BE SOLVED: To provide a metal-clad switchgear
capable of allowing maintenance and inspection of each of a
plurality of housings arranged side by side to be performed easily
even when a front door of an adjacent housing is opened.
SOLUTION: The metal-clad switchgear includes a front-side member
provided on a front side of each of a plurality of housings 1a, 1b, 1c
arranged side by side. The front-side member includes
openable/closable front doors 3a, 3b, 3c, and a pair of guide rails
11a, 11b, 11c configured to movably move the front doors 3a, 3b, 3c
and provided in a depth direction of the housings 1a, 1b, 1c. When
the front side is open, the front doors 3a, 3b, 3c are housed in the
housings 1a, 1b, 1c, respectively.
NO NO
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JP2012085438 METAL-CLAD
SWITCHGEAR TOSHIBA
2010JP-0229562
20101012
PROBLEM TO BE SOLVED: To open a back side of a housing without
removing a back panel that blocks the back side of the housing.
SOLUTION: There is provided a metal-clad switchgear in which a
housing comprises a floor panel 2, a side panel 3, a ceiling panel 4, a
back-side member, and a front door. The back-side member
includes: back-side plates 10a, (10b) which cover the back side;
hinges 11a, (11b) whose one side is fixed to one longitudinal side of
the back-side plates 10a, (10b); hinge bases 15a, (15b) fixed to the
other side of the hinges 11a, (11b); and a pair of rails 16a, 16b, (16c,
16d) which extend toward the front side from the back side and in a
groove portion of which both ends of the hinge bases 15a, (15b)
movably move.
NO NO
CA2749277 A1
US2011299228 A1
US2011299226 A1
EP2430717 A2
WO2011156243 A3
US8451589 B2
US8482903 B2
MULTI-ACCESS
SWITCHGEAR
ASSEMBLY
ABD EL & LARSON
HOLDINGS
2010US-0905077
20101014
2010US-P352022
20100607
2011US-13151308
20110602
2011WO-US39202
20110606
A metal clad switchgear assembly comprising multiple
compartments defined within an electrical enclosure is provided. The
compartments interchangeably accommodate electrical
components, for example, current transformers, a circuit breaker, a
control power transformer, an epoxy encapsulated potential
transformer, etc., electrical cables, and bus bars in predetermined
positions for allowing front access and/or rear access to them. One
or more compartments are configured for enabling the electrical
cables to enter into and/or exit out from the electrical enclosure for
allowing front and/or rear access to the electrical cables. A
mounting block assembly is positioned in one or more of the
compartments for mounting, enclosing, and providing front access
to the electrical components. One or more infrared windows and
inspection windows are positioned on a front side and/or a rear side
of the switchgear assembly for scanning and providing a visual
indication of the electrical components, the electrical cables, and
the bus bars.
NO SI
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DE102010019367 A1
WO2011110298 A3
CN102782972 A
KR20130008541 A
GAS-INSULATED,
METAL-CLAD,
SINGLE-PHASE OR
POLYPHASE
SWITCHGEAR UNIT
ABB TECHNOLOGY
2010DE-10010795
20100309
2010DE-10019367
20100505
2011WO-EP00986
20110301
The invention relates to a gas-insulated, metal-clad, single-phase or
polyphase high-voltage switchgear unit, comprising a long cable,
which has a tubular cladding and a number of internal conductors
(16, 17; 32) corresponding to the number of phases, and a
compensation device (11) for offsetting temperature-dependent
changes in length of the cable. The cladding of the cable part of
the compensation device (11) has a first tubular cladding section
(12, 42) on which a connector (13) extending perpendicular thereto
is integrally formed for connecting a further cable. A metal bellows
(19, 20; 40, 41) is fastened to each end of the tubular cladding
section (12, 42), and the free ends of said metal bellows are fixed
spaced apart by means of a holder (25, 49). The internal conductor
in the tubular cladding portion (12, 42) is electrically conductively
connected to the internal conductor (17, 23) which extends
perpendicular thereto and is associated with the connectors (13) via
a sliding contact connection (18).
NO SI
50/140
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CN201682202 U
Withdraw-out metal-
clad and metal-
enclosed switchgear
CHANGAN 2010CN-U202681
20100521
The utility model relates to a withdraw-out metal-clad and metal-
enclosed switchgear, which comprises a metal-clad cabinet body.
The metal-clad cabinet body holds a bus chamber, a cable
chamber, a handcart chamber, a low voltage chamber and a relay
chamber. The withdraw-out metal-clad and metal-enclosed
switchgear is characterized in that the relay chamber is located on
the upper portion of the front of the metal-clad cabinet body, the
bus chamber is located on the upper portion of the rear of the
metal-clad cabinet body, the low voltage chamber is located on
one side of the relay chamber, the handcart chamber is located on
the lower portion of the low voltage chamber, a circuit breaker
handcart is located in the handcart chamber, the cable chamber is
located at the rear of the lower portion of the metal-clad cabinet
body, the bus chamber, the cable chamber, the handcart
chamber, the low voltage chamber and the relay chamber are
partitioned by partition boards, an outer casing of each unit is
grounded independently, and a pressure relief device is further
arranged above the handcart chamber, the bus chamber and the
cable chamber. The withdraw-out metal-clad and metal-enclosed
switchgear is in a function modularization form, is arranged in the
specific chambers and matches with a GGIA in terms of
appearance and size, and further, the partition boards of the
chambers are independent grounded so that the switchgear is safer
in maintenance and repair operations.
NO NO
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JP2010279102 A
JP5306056 B2
METAL-CLAD TYPE
SWITCHGEAR TOSHIBA
2009JP-0126929
20090526
PROBLEM TO BE SOLVED: To prevent the ingress of rain water through
a portion of a lifting member for lifting a roof, even without having to
carry out caulking processing.
SOLUTION: Metal-clad type switchgear includes: box bodies 2a, 2b
for housing an electrical apparatus; roofs 3a, 3b provided on the
ceiling portions of the box bodies 2a, 2b; lifting members, such as,
hanger bolts 6a, 6b that are fixed on the outer surfaces of the roofs
3a, 3b in the direction of depth and are used for lifting the roofs 3a,
3b; and end portion waterproof covers 4a, 4b, 5 so provided as to
cover the lifting members
NO NO
EP2254210 A1
Metal-clad, high-
voltage gas-
insulated switchgear
housing
ABB TECHNOLOGY
2009DE-10022103
20090520
2009DE-10022105
20090520
The high voltage switchgear housing (1c) has a chamber (24), which
is accessible through two connecting openings (4a,4b,4c) from the
outer side of the high voltage switchgear housing. The two
connecting openings form a connecting group (5) of connecting
openings, and are formed for supporting a separate phase
conductor. A flange-shaped adaptor section is provided for
mechanical connection of the high voltage switchgear housing. An
independent claim is also included for a gas-insulated high voltage
switchgear.
NO NO
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CN101728780 B
Grounding device
of metal-clad
moveable high-
voltage switchgear
ANHUI XINLONG
ELECTRICAL
2009CN-0251445
20091221
The invention discloses a grounding device of a metal-clad
moveable high-voltage switchgear, which comprises a handcart (1)
and guide rails (3) arranged on a body of a switchgear for the
handcart (1) to run on, wherein the handcart (1) and the grounding
device of the high-voltage switchgear adopt a clamp type
connection structure. According to the technical scheme, when the
handcart is swung to a work position from a test position by a swing
mechanism, the grounded connection structures are tightly
occluded together in a gliding process or a work state, so the
contact resistance is greatly reduced, the safety of operators is
further guaranteed and the requirements on electric grounding
safety of the switchgear are completely met. The combined use of a
plurality of grounding ways makes the grounding performance of the
grounding device of the metal-clad moveable high-voltage
switchgear; and the plurality of grounding ways can be freely and
flexibly selected.
NO NO
CN101483322 A
Armored withdraw
type metal enclosed
switch cabinet
ANHUI ZHONG AN
HENGYU ELECTRIC
2008CN-0236344
20081107
The present invention relates to a metal-clad movable metal-
enclosed switchgear, which comprises a housing, a clapboard that
surround the housing to be closed space of a bus-bar room, a cart
room, a electric relay meter cabinet and a cable house; a circuit
breaker cart is set in the cart room; the housing and the clapboard
are made of Al-Zn coated steel sheet and they two riveted as a
whole after bending; the circuit breaker cart is disposed on the
chassis. The housing and the insulating clapboard in the invention is
assembled but not welded with good-look appearance, welding
stress is avoided, furthermore, the present invention is secure and
reliable in use, and has good protective performance.
NO NO
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US2009173604 A1
US7763814 B2
ELECTRICAL
SWITCHING
APPARATUS AND
TOOL THEREFOR
EATON 2008US-0968738
20080103
A tool is provided to manipulate an electrical switching apparatus,
such as a circuit breaker, with respect to a housing structure. The
circuit breaker has a mechanical interface. The tool includes an
actuating mechanism having a plurality of segments and joints,
which movably connect the segments. One segment is engageable
with the mechanical interface of the circuit breaker. Another
segment comprises a handle portion structured to be gripped by a
user. The actuating mechanism is movable between a first position in
which the segments are substantially parallel with respect to one
another, and a second position in which adjacent segments are
substantially perpendicular to each other. When disposed in the first
position, the tool is stowable in an opening of the circuit breaker.
When disposed in the second position, the tool is operable to move
the circuit breaker in a predetermined manner with respect to the
housing structure.
NO NO
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CN201142296 Y
Indoor amour fixing
type metal closed
switch apparatus
SHENYANG PENGDA
ELECTRIC
2007CN-U185183
20071226
The utility model relates to an indoor armored fixed type metal-clad
switchgear which is provided with a cabinet body. The metal-clad
switchgear is characterized in that a bus bar room, a circuit breaker
room, a cable room and a relay instrument room are all arranged in
the cabinet body, wherein the bus bar room is positioned above the
rear part of the cabinet body; the circuit breaker room is positioned
at the front middle part of the cabinet body, and a circuit breaker
room pressure relief channel is arranged in the circuit breaker room;
the cable room is positioned at the lower part of the cabinet body,
and a cable room pressure relief channel is arranged in the cable
room; the relay instrument room is positioned above the front part of
the cabinet body, and an inspection window is formed on the front
door of the cabinet body. The metal-clad switchgear selects a
miniaturized vacuum circuit breaker, a miniaturized disconnecting
switch, a grounding switch and a interlocking mechanism with simple
and reliable operation; the cabinet body structure is made of an
aluminum plated zinc plate through double raised edge processing,
which is not required to be welded; and the indoor armored fixed
type metal-clad switchgear has the advantages of no deformation,
small volume, saving the occupied area and the building area,
novel structure, small volume, secure overhaul, flexible operation
and saving labor.
NO NO
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KR100807760 B1
METAL-CLAD
SWITCHGEAR AND
CONTROLGEAR
CHEONG SEOK
ELECTRICITY
CHEONG SEOK
ENGINEERING
2007KR-0045510
20070510
A metal-clad switchboard is provided to efficiently manage the
metal-clad switchboard by repairing and replacing with isolating
only a side which is electrically connected to a repaired component.
A metal-clad switchboard includes housing(101), electrical
equipment, a first bus(113), and a second bus(114). An inner space
of the housing is partitioned into a machinery room(104) to receive
the electric power machine, a first bus room(102) with the first bus,
and a second room(103) with the second bus. The machinery room,
the first bus room, and the second bus room are isolated from each
other by a partition wall. The first and second bus rooms have door
units(106,107) respectively. The door unit of the first bus room is
installed at the housing to directly connect the outside of the
housing and the inside of the first bus room when opening. The door
unit of the second bus room is installed at the housing to directly
connect the outside of the housing and the inside of the second bus
room when opening.
NO NO
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CN2648657 Y
Metal-clad movable
high voltage switch
cubicle
DONGFANG
ELECTRIC APPLIANCES
MANUFACTURING
2003CN-U272666
20030915
An armor removing-typed high voltage switchgear is characterized
in that: in an assembly-typed cabinet body, a main bus room is
arranged closely at the rear side of the upper part in the cabinet;
the front side of the upper part in the cabinet is an equipment room;
a secondary small bus room is arranged on the cabinet top above
the equipment room; a circuit breaker room in which a circuit
breaker handcart is arranged is positioned in the middle of the
cabinet; a propulsion mechanism that comprises a handle, a lead
screw and a wire carrier is arranged under the handcart chassis and
a diaphragm is arranged between the door frames; a cable room is
arranged at the rear side of the lower part in the cabinet and the
cable room is provided with an axis interlock that is connected with
an earthing switch and a pressure releasing pathway that is
communicated with the cable room is arranged on the lateral inner
wall at the back of the cabinet. The utility model not only has
beautiful appearance, small volume, high fit accuracy and
convenient operation and maintenance, but also provides a perfect
transmission and distribution equipment for the upgrade and
improvement of a transformer substation.
NO NO
CN2648653 Y Metal-clad switch
cubicle LI YONGJI
2003CN-U243800
20030411
The utility model discloses a metal armouring intermediate
switchgear cabinet applied to power system substation
configuration, the rated work voltage of which is 12 KV, consisting of
a maintenance channel, a bus room, an equipment room, a relay
room, a breaker handcart room and a cable room. All rooms in the
cabinet are separated by metal plates; the shell of each unit has
separated grounding and is provided with a pressure release device.
Perfect five-prevention function and interlock provide safe
protection for operating workers and equipment and the
arrangement of the maintenance channel and the observation
window prominently shows the convenience and safety of the
equipment maintenance.
NO NO
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EP1463173 A1
DE10314459 A1
Metal-clad gas-
insulated switchgear ALSTOM
2003DE-1014459
20030328
The external cone outlet system (20) and the internal cone outlet
system (25) have a current transformer (SW) of the same
construction.
NO NO
DE10314458 A1
EP1463174 B1
AT460761 T
DE50312499 D1
ES2342371 T3
HK1068031 A1
Metal-clad gas-
insulated switchgear
ALSTOM
AREVA T&D
2003DE-1014458
20030328
The gas-tight main enclosure (12) contains the power switch
compartment (14). The main enclosure includes a mounting for the
power switch compartment (14) and the cable outlet opening (19).
This is sealed gas-tight with a panel (40) or various different fittings.
NO NO
US2002067584 A1
BR0105902 A
FR2817673 B1
US6744614 B2
MXPA01012535 A
CA2364140 C
EP1213807 B1
AT498228 T
DE60144006 D1
ES2360932 T3
Metal clad electrical
apparatues with a
rupture disc
protected against
atmospheric
agressions
ALSTOM
AREVA T&D
2000FR-0015783
20001206
Gas insulated electric gear includes rupture disk provided inside
cabinet in which temperature and humidity are controlled
A rupture disk (1) enclosed by a cabinet (3) ruptures when dielectric
gas in a tank (2) reaches an excessive pressure, so as to allow the
gas to be exhausted from the tank. The internal temperature and
humidity of the cabinet are controlled.
SI -
RU2165120 C2 SWITCHGEAR
CUBICLE KURSKIJ GTU
1998RU-0117727
19980925
FIELD: electrical engineering; metal clad switchgear, power stations
and substations. SUBSTANCE: switchgear cubicle accommodates
circuit breaker incorporating insulators and plug-connector contacts
and is mounted on platform displaced in vertical plane; newly
introduced are laminated collet clamps. EFFECT: improved reliability
of contact connections.
NO NO
US5905244 A
CA2276076 A1
Arc resistant metal-
clad switchgear EATON
1998US-0102181
19980622
Upper and lower compartments are provided in metal-clad
switchgear that are mirror images of each other. The compartments
have doors that move toward one another to lock. The upper
compartment has rails at the bottom for receiving a fuse truck, and
the lower compartment has a division sheet between the
compartment that has openings in it for receiving mating projections
on the doors.
NO NO
58/140
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EP0945730 A2
DE19812799 A1
Gas-insulated metal-
clad switchgear ABB
1998DE-1012799
19980324
The measuring element of the optical sensor using the pockel effect,
is made of material the polarization plane of which alters with the
application of a voltage. A capacitive voltage converter (24) is
arranged inside the switching system, for transmitting at least one
reference signal.
NO NO
EP0935325 A1
CN1225521 A
DE19805705 A1
JPH11289619 A
HU9900264 A3
US6134101 A
Gas-insulated,
metal-encapsulated
switchgear
ABB
ABB SCHWEIZ
HOLDING
1998DE-1005705
19980206
The system has at least two switching fields (1-4), each with at least
two multiple pole power switches (CB1..) connected together to
form a ring and with isolating and earth switches per pole (CB1R).
The identical power switch poles are connected in parallel. The fields
for each phase are arranged in a vertical plane with a U-shaped
current path with the base contg. a vertically aligned pole of the
power switch and both arms contg. a power switch current
connection and an isolation and earth switch. The upper U arms are
phase-wise connected to a first field. The lower arms are connected
to the second field via a single phase tube gas line (L34(S)) inclined
to the vertical.
NO NO
CN1197316 A
JPH118916 A
US5991148 A
HU9800891 A3
HU221960 B1
CN1191665 C
DE19716024 B4
JP4132202 B2
EP0872931 B1
DE59814410 D1
Metal clad
switchgear
ABB
ABB SCHWEIZ
ABB SCHWEIZ
HOLDING
1997DE-1016024
19970417
A single-phase system has a central distance between a first
connector and a second connector which is at least three times and
at most four times an axial distance representing a module
dimension for the bus bar axis. The power switches (1,2,3) in the
switching field are offset w.r.t. each other by the module dimension,
which corresp. to the axial distance (s) of the bus bar axes (13,14,15).
NO NO
59/140
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DE19716022 A1
CN1199946 A
JPH10336823 A
US5981894 A
EP0872934 B1
DE59801491 D1
CN1160843 C
Metal clad
switchgear
ABB
ABB
HOCHSPANNUNGSTE
CHNIK
ABB
HOCHSPANNUNGSTE
CHNIK ZU
ABB SCHWEIZ
1997DE-1016022
19970417
1998DE-5001491
19980325
The switchgear has at least one active part (19) extending along an
axis (18) in a housing with a contact assembly (25) on at least one
side and a connecting part (26) with a screen electrode (28) and
able to be electrically connected to the contact assembly. The
screen electrode is connected to a carrier element bounding an
intermediate vol. (40). The carrier element is connected to an
armature (37) on the side remote from the screening electrode. The
armature has bores (39) emanating from the intermediate vol. which
accept fixing bolts.
NO NO
WO9728588 A1
CN1209911 A
EP0878042 B1
DE59700619 D1
US6014083 A
JP2000504552 A
METAL-ENCASED
SWITCHGEAR WITH
PARTIAL DISCHARGE
DETECTION
SIEMENS
1996DE-1003462
19960131
1997DE-5000619
19970120
1997WO-DE00091
19970120
1998US-0127525
19980731
The invention concerns metal-encased switchgear (1) in which a
common processing system (30) is used in order to detect partial
discharges (TE) and monitor the switchgear (1). The processing
system (30) comprises a transceiver antenna (11) which is directed to
the inner chamber (4) of the casing (5) and is used for detecting
partial discharges and exchanging data with sensors (7a to 7d)
disposed inside the casing (5).
NO NO
DE4445865 A1
JPH08237826 A
EP0718941 B1
DE59504903 D1
Electrical metal clad
gas-insulated high
voltage installation
ABB
1994DE-4445865
19941222
1995DE-5004903
19951219
Power switch poles (13) in individual chambers (15), one for each
phase of the network, are installed in a thin-walled cylindrical
housing (10) between upper and lower covers (11, 12). An opening
in the lower cover (12) is closed by a union (17) with a crank housing
(18) which together with the chamber constitutes a single gas space.
Separate horizontal unions (19, 20) are provided with busbar housings
(31, 32) for which conductors (21, 22) serving the switch poles are
taken through insulators (25, 26) with holes (33, 34) allowing gas
exchange between the housings, independent of exchanges
between the switch chamber and crank housing.
NO NO
60/140
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DE4420524 A1
CA2147085 A1
BR9502775 A
CN1126385 A
US5578805 A
CN1045033 C
DE59506631 D1
EP0688071 B2
Metal-clad gas-
insulated switchgear
ABB
ABB SCHWEIZ
1994DE-4420524
19940613
1995DE-5006631
19950531
Metal-encapsulated gas-insulated switchgear
A metal-cased gas-insulated switchgear unit has at least two busbar
systems and one circuit breaker with one metal-cased quench
chamber per pole. The pole axes are at right angles to the bedplate
and lie in one plane. There is an electrical connection between the
quench chamber and the busbar system. The quench chamber is
mechanically connected by at least two electrical terminals, being
positioned within the casing entirely by these. The electrical
connection is between a contact assembly inside the pole housing
and a contact ring surrounding the pole axis. The ring is connected
on one side to a bulkhead insulator.
NO NO
CA2145456 A1
AU1366095 A
BR9501714 A
CN1113614 A
ZA9502887 A
US5578804 A
RU95105599 A
CN1038719 C
EP0678955 B1
DE59406835 D1
Metal-clad gas-
insulated switch
installation.
ABB
ABB MENEDZHMENT
ABB SCHWEIZ
1994CH-0001219
19940419
A metal-cased gas-insulated switchgear unit has at least two busbar
systems with a circuit-breaker (6). The busbar axes are parallel to the
bedplate and are in parallel planes. The connection axis is vertical to
these. The isolators have counter-contacts on the side facing
towards the circuit-breaker. These contacts are always at the same
potential. They can be attached to an earth plate between the pole
and the isolator. The electrical connection has a contact assembly
with a concentric contact ring around them inside the pole housing.
The ring is connected rigidly on one side to a current terminal on a
bulkhead door insulator.
NO NO
CA2145455 A1
BR9501712 A
ZA9502119 A
CN1120754 A
US5589674 A
EP0678954 B1
DE59406834 D1
CN1041152 C
Metal-clad gas-
insulated switch
installation.
ABB
ABB SCHWEIZ
1994CH-0001218
19940419
A metal-cased gas-insulated switchgear unit has at least one busbar
system which has a circuit breaker (6) with a different pole axis (13)
for each pole. There is at least one quench chamber in one pole
housing and at least one terminal for the relevant busbars. The pole
axes are vertical to the baseplate (4) and lie in a plane. The busbar
axes of at least one busbar system are parallel to the baseplate and
lie in a second plane. The terminals for the busbars (5) lie on a
diagonal.
NO NO
61/140
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RU2080722 C1 METAL-CLAD
SWITCHGEAR KAZARIKIN VASILIJ A
1993RU-0045997
19930927
FIELD: power engineering; low-voltage switchgear for auxiliary-supply
transformer substations of power stations. SUBSTANCE: switchgear
cabinet has compartment with collecting buses and compartment
with secondary-circuit terminal assembly. All switchgear cubicles
accommodate hand-operated draw-out power circuit breakers
whose secondary circuits are connected to terminal assembly of
secondary circuits through plug connector. Buses outgoing from
lower leads of circuit breaker are arranged between power buses.
Bundled conductors running from connector socket of circuit
breaker are connected directly to terminal assembly of secondary
circuits and also directly to individual circuit-breaker position
indicating circuit components mounted on cubicle door. EFFECT:
enlarged quantity of power circuit breakers that can be housed in
cabinet.
NO NO
JPH0739027 A METAL-CLAD
SWITCHGEAR TOSHIBA
1993JP-0179497
19930721
PURPOSE: To obtain a metal-clad switchgear which can reduce an
installation area, shorten an installation period and comply with
various specifications.
CONSTITUTION: Block units 1A, 1B, 1C in which drawing-out-type
apparatus chambers and cable chambers have been installed
alternately are stacked around a bus chamber 2. Longitudinal buses
7A, 7B, 7C are erected and installed in the bus chamber 2.
Transverse bus rings 10A, 10G, 10C are installed at the outside of the
longitudinal buses 7A, 7B, 7C, and they are connected to the
longitudinal buses 7A, 7B, 7C. Feeder breakers 4A, 4B, 4C, 4D, 4F, 4E
and the like in the individual apparatus chambers are connected to
the transverse bus rings 10A, 10B, 10C via contact makers.
NO NO
62/140
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JO1807 B
EP0634765 A1
PL304315 A1
AU6605294 A
BR9402266 A
CN1103507 A
US5486662 A
AU678242 B2
IL110150 A
CN1036229 C
PL175003 B1
CA2128149 C
Flexible connector
for a circuit
interrupter.
EATON 1993US-0093287
19930716
A flexible connector (60) for connecting a movable contact (52) of
an electrical switch (24) to a fixed electrical terminal (64). The flexible
connector is a stack of flexible sheets (84) of conducting material.
The flexible connector is such that it can accommodate the
movement of the movable contact. A circuit interrupter system, such
as a vacuum circuit interrupter (24), and metal clad switchgear (20)
also includes the arrangement provided.
NO NO
EP0627800 A1
DE4318074 A1
CN1097904 A
KR0130538 B1
Metal-clad gas-
insulated switch
installation with a
cable termination.
ABB 1993DE-4318074
19930601
An enclosure (16) having cable terminations is fitted on a flange (14)
of an enclosure (10) of an electrical switching installation. The
enclosure (16) is preinstalled and aligned at such a distance (D) from
the adjacent flange (14) of the switching installation enclosure (10)
that the free ends of the cable conductors are at a distance (h) from
the flange (14) of the switching installation enclosure. This makes it
possible to see clearly the contact pieces (28, 29) on the cable
conductors and the mating contact pieces (26) on the phase slides
(24, 25), and makes them freely accessible. After the contact pieces
(28, 29) have made contact with the mating contact pieces (26), a
tubular piece (30) which is located in the enclosure (16) is drawn out
of the enclosure, its radial flanging (31) strikes against the adjacent
flange (14) of the switching installation enclosure (10), and is
fastened there. The tubular piece element (30) is fixed and sealed by
means of a clamping flange ring (32) which is fitted on that flange
(23) of the enclosure (16) which is on the switching installation side.
NO NO
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WO9424741 A1
DE4313659 A1
CA2160923 A1
TR27685 A
BR9406475 A
CN1121379 A
EP0695471 B1
AT155934 T
DE59403469 D1
RU2110658 C1
CN1041261 C
EG20480 A
METAL-ENCLOSED
SWITCHGEAR PANEL
WITH DOOR LOCK
RESPONDING TO
LOCKING
REQUIREMENTS
SIEMENS
1993DE-4313659
19930420
1994DE-5003469
19940419
1994WO-DE00514
19940419
DE4313659
19930420
A switchgear panel (1) has a door arrangement (3) provided with a
door lock (7) which has a closing element (23) with a closing shaft
(32). A first drive dog (35), and also a second drive dog (42) axially
movable on the closing shaft (32), are mounted on said closing shaft
(32). The first drive dog (35) actuates a door locking bolt (27),
whereas the second drive dog (42), according to its axial position,
cooperates with a driver slide (30) which hangs down from a closing
flap on an access opening (24) for a drive system (23). A sensor
organ (31) actuates a driver fork (43) for the second drive dog (42)
depending on the presence of switchgear (12) in the cabinet (10).
NO NO
DE9109811 U1
EP0526958 A1
Metal clad switch-
gear. SIEMENS
1991DE-U009811
19910805
In the case of an encapsulated switching installation, an interrupter
circuit breaker (1) and a power circuit breaker (21) are arranged in
such a manner that their longitudinal axes run parallel to one
another and form the free limbs of a "U". The interrupter circuit
breaker (1) has stationary contact pieces (9, 10) from which
conductors (7, 8) originate which are passed through flanges at right
angles to the longitudinal axis of the encapsulation housing of the
interrupter circuit breaker. A first flange (22) is connected to the
power circuit breaker (21) via a further interrupter circuit breaker
encapsulation housing. A second flange (23) is connected to the
encapsulation of a busbar (19) which passes through the "U".
NO NO
64/140
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CN1068913 A
MX9204324 A
US5216574 A
FR2679710 B1
EP0526308 B1
AT126939 T
DK0526308 T3
DE69204238 D1
ES2075651 T3
CA2074440 C
CN1033677 C
Metal clad
switchgear
component for
disconnecting and
grounding.
ALSTOM 1991FR-0009282
19910723
Metal clad switchgear component intended to produce the
equivalent of three three-phase isolators arranged respectively on
two outlets supplying the same three-phase busbar with the option
of grounding the isolators upstream of them, characterised in that
the disconnecting and grounding operations are carried out by
means of first contact pieces (31R, 31S, 31T; 33R, 33S, 33T; 35R, 35S,
35T; 31R', 31S', 31T', 33R', 33S', 33T', 35R', 35S', 35T') cooperating with
second contact pieces (44R, 44S, 44T; 44R', 44S', 44T') connected
together electrically and grounded, and third contact pieces (43R,
43S, 43T, 46R, 45S, 46S, 45T, 46T; 53R, 53S, 53T), the said second and
third contact pieces being carried by the same shaft (42).
SI -
JPH0530615 A METAL CLAD
SWITCHGEAR TOSHIBA
1991JP-0177058
19910718
PURPOSE: To obtain a front access metal clad switchgear in which
the joints of main circuits can be vidually observed from the front
without sacrifice of operability in the making/breaking operation of
the main circuit of a truck-type vacuum breaker and without
increasing the depth and the width of the housing and in which the
number of stack of vacuum circuit breaker can be increased.
CONSTITUTION: An upper finger 3A of a truck-type vacuum circuit
breaker 2 is disposed in front of a lover finger 3B and cables 6, to be
connected with an upper terminal 15A on fixed side to be fit with the
upper finger 3A, are raised from the floor face on the right and left
sides of the housing. A current transformer 7 is fixed to the upper part
of the circuit breaker 2.
NO NO
65/140
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EP0452639 B1
AT122825 T
DE59105489 D1
ES2073602 T3
DK0452639 T3
DE4012390 C2
Metal-clad, gas-
insulated switch
gear for a compact
transformer station in
the middle range.
ORMAZABAL
1990DE-4012390
19900419
1991DE-5005489
19910227
Load interruptor switch installations are used virtually universally in
medium-voltage distribution networks. In this case, compressed-gas-
insulated installations are preferred. However, because of
complicated busbar arrangements, it is not possible to house such
switch installations in a very small space. 2.2 In order to achieve this
object, it is proposed that a plurality of load interruptor switches be
arranged in a gas tank (1) such that the switching blade (2) of one
phase of the "on" position makes contact with a common contact
piece (3) which is constructed functionally as a busbar. In this case,
the contact piece (3) is equipped with extinguishing devices (6) for
the switching blade (2). Furthermore, the earthing devices are
constructed as earthing contacts (7) connected to a switch shaft (8).
2.3 Such switch installations can preferably be used in compact
network stations in a very small space.
NO NO
SI9011846 A
HRP920343 B1
GAS-INSULATED
METAL-CLAD
SWICHGEAR
INSTALLATION - HAS
PLUG CONNECTION
TO FEEDTHROUGH
LEADING TO PIVOT
OF LEVER WHICH
MOVES CONTACT
REVERSIBLY BETWEEN
BUS-BAR AND
EARTHING POINT
ORMAZABAL
1989DE-3933535
19891007
1990YU-0001846
19900928
NO NO
66/140
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DE8912889 U1
DE3904146 A1
JPH02234321 A
US5025118 A
EP0382324 B1
DE59002775 D1
JP2885860 B2
CA2009289 C
Metal-clad
pressurized-gas
power switch with
an operating rod.
SIEMENS
1989DE-3904146
19890207
1989DE-U012889
19890207
1990DE-5002775
19900201
A metal-encapsulated pressurised-gas power circuit breaker (1) with
a gas-filled housing (2) and with an interrupter unit (3), supported in
an insulated manner in the housing (2), has at least one insulating
operating rod (26), coupled to the switch contact (20), for operating
a movable switch contact (20), which operating rod extends, in
connection to the interrupter unit (3), through an orientation device
(5), which is conductive and absorbs the flow of the switching gases
during switching off, as well as through a hollow supporting insulator
(4), connected to the orientation device (5). The orientation device
(5) permits only a proportion of the switching gases to pass through in
the direction of the at least one operating rod (26) and deflects the
remaining proportion at least in the radial direction. In this way, the
action of the switching gases on the operating rod (26) and the
supporting insulator (4) is reduced. <??>The power circuit breaker
described is especially suitable for use in gas-insulated metal-
encapsulated high-voltage switchgear.
NO NO
DE3826762 A1
WO9001787 A1
NO904762 A
DE8816894 U1
JPH04500133 A
EP0419468 B1
AT73960 T
DE3869429 D1
US5153398 A
EP0354166 B1
CA1329234 C]
NO175729 C
JP2691169 B2
Gas-insulated high-
voltage switchgear
with an insulated
grounding switch.
SIEMENS
1988DE-3826762
19880804
1988DE-3869429
19881103
1988DE-U016894
19880804
1988EP-0909298
19881103
1988WO-DE00686
19881103
In gas-insulated high-voltage switchgear, insulated grounding
switches (3) are also used for applying test voltages. For this reason,
an insulating material ring (13) is provided between the housing (6)
and the encapsulation (1), in which ring a conductor (14) with
connection lug (15) is embedded which is in contact with the switch
pin (5).
To improve the insulation, the insulating material ring (13) lies within a
metal ring (12) which acts as a support ring and receives the
fastening means (9). It is interrupted only by the connection lug (15)
provided with an insulating material envelope (17). The insulating
material ring (13) is thus largely relieved of mechanical stresses.
Insulated grounding switches are used in SF6 -gas-insulated metal-
enclosed high-voltage switchgear.
NO NO
67/140
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SU1624573 A1 METAL-CLAD
SWITCHGEAR UNIT
VDZEDZOYIUZNUYI
NAUSNNO IDZDZL
1988SU-4466414
19880728
The invention of [otnosits] to electrical engineering can be used
before [konstruktsi] X of the cabinets of factory assembled
switchgear. Object of the invention - an increase in the reliability of
operations. Device with [derlit] cabinet with the roller element,
sphere the [nirno]- lever transfer, which includes shutters. By one end
is toggle transfer by means of [tolkatel] it is connected with the roller
element, and by others - with the wall of cabinet. In toggle transfer is
included the double-arm lever, whose one arm is executed with the
groove, another arm with the aid of t of [gi] is connected with the
arm of ter- [plechego] lever, and other two arms of the latter are
connected with the levers of shutters 2 illus.
NO NO
DK166888 A
FI882039 A
NO881962 A
CN88102677 A
JPS63287309 A
PT87407 A
DE8717730 U1
DE3715053 C2
US5003427 A
EP0291762 B1
AT85469 T
DE3878028 D1
ES2038238 T3
GR3007292 T3
PT87407 B
NO174228 C
FI96070 C
JP2666958 B2
CN1038373 C
Metal-clad, gas
filled, multiphase
high voltage
switchgear.
AREVA T&D
SACHSENWERK
SACHSENWERK
EINHAUSER STRASSE 9
D 8401 TEGERNHEIM
GERMANY
SACHSENWERK LICHT
& KRAFT
1987DE-3715053
19870506
1988DE-3878028
19880504
1988EP-0107124
19880504
In a metal-clad, gas-filled, multiphase high-voltage switch gear,
having a partition (12) between the busbar chamber (21) and the
switch chamber (14), the connection between the two chambers
(14, 21) takes place via ducts (13) inserted diagonally in the partition
(12), which ducts (13) are arranged in the one direction in the
spacing of the busbars (1) and, in the other direction, in the spacing
of the poles (6) of the circuit breaker or load isolator (9). As a result,
straight-line, crossing-free connections are possible in the busbar
chamber (21), between each busbar (1) and the associated duct
(13), via the respective isolating or three-position switch (8), while the
connecting lines (15a, b, c) in the switch chamber (14) run to the
poles (6) in mutually parallel planes, once again without crossing.
<??>Apart from minimising the switch gear dimensions and
increasing the electrical strength as a result of the diagonal
arrangement in the busbar chamber (21), in conjunction with a
square housing (20), the installation of earthed separating walls (22,
32) between the phases in the two chambers (14, 21) allows
effective reinforcement of the outer walls (17) and, above all, the
partition (12) to be achieved. Likewise, in the event of a fault, phase
shorts with high current arcs are prevented. The stated advantages
can also be used in the case of separated multiple busbar systems.
NO NO
68/140
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JPS62226520 A
US4774627 A
DE3608482 C2
EP0236886 B1
DE3778572 D1
Metal-enclosed
switchgear.
BROWN BOVERI &
COMPAGNIE
1986DE-3608482
19860314
1987DE-3778572
19870228
A metal-encapsulated switching apparatus includes a housing
having first and second opposite ends, a first insulator disposed at
the first end and a second insulator disposed at the second end. First
terminals are supported on the first insulator. First phase conductors
run in a given direction and are connected to the first terminals.
Second terminals are supported on the second insulator. Second
phase conductors run in the given direction and are connected to
the second terminals. The first and second terminals are mutually
parallel, spaced apart and mutually overlapped. Movable contacts
in the form of contact blades are supported on the first terminals.
Fixed contacts are supported on the second terminals. Extensions
with free ends protrude from and are perpendicular to the first and
second terminals in the same direction. Fixed terminal contacts are
perpendicular to the given direction of the phase conductors.
Intermediate pieces are disposed on the free ends of the extensions
and are movable into contact with the fixed terminal contacts.
NO NO
DE3531492 A1
EP0217731 B1
DE3666757 D1
High-voltage gas-
insulated metal-clad
switchgear with
earthing switches.
SIEMENS
1985DE-3531492
19850830
1986DE-3666757
19860812
Metal-enclosed, compressed gas-insulated switching station with
panels (2) and busbars, the longitudinal axis of which runs
perpendicular to the phase current path plane (17) of the switch
panels (2), in which there are provided in the switch panels (2) or on
the busbars earthing switches (6, 7, 8) the earthing switching pin (18)
of which, connecting in the switched-on state the metal enclosure
(16) with the conductor (10) of the switch panels (2) or with the
busbar, forms an acute or obtuse angle in relation to the phase
current path plane (17) of the switch panels (2), characterised in that
in the case of switch panels enclosed in a single-phase manner the
angle of the earthing switching pin (18) in relation to the phase
current path plane (17) amounts to 45 degrees to 135 degrees.
NO NO
69/140
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JPS61112503 A
US4677524 A
KR900003184 B1
EP0180959 B1
DE3585427 D1
Metalclad
switchgear.
TOSHIBA
TOSHIBA 72
HORIKAWA CHO
SAIWAI KU KAWASAKI
SHI JAPAN
1984JP-0232301
19841106
A metalclad switchgear has three assemblies which are separately
arranged in separate housings (48, 72, 78) for housing a circuit
breaker (12), a control line (71) and a cable (34), all constituting the
metalclad switchgear and which can be detachably coupled. The
three assemblies are a circuit interrupting device (50), which can be
designed for standardization, and a control line compartment (70)
and a cable compartment (76) both of which can be designed in
accordance with given specifications.
NO NO
DE3427800 A1
JPS6142206 A
EP0171352 B
DE3570332 D1
High-voltage gas-
insulated metal-clad
switchgear.
SIEMENS
1984DE-3427800
19840725
1985DE-3570332
19850718
Metal-enclosed, compressed gas-insulated high-voltage switchgear
with single-pole or multipole earthing switches (4) with blade-shaped
moving contact pieces (5) which come into contact with a
respective opposing contact face (6) of a cylindrical or spherical
conductor (2) owing to the rotational movement of a driving shaft
(11) and, in the open state, lie in a projection (8) provided on the
periphery of the substantially cylindrical metal enclosure (1) outside a
cylinder face (9) corresponding to the internal diameter (10) of the
metal enclosure (1), characterised in that the projection (8) runs in
the peripheral direction over a proportion of the periphery of the
metal enclosure (1), in that the blade-shaped contact piece or
pieces (5) lie tangentially to the imaginary cylinder face (9)
corresponding to the internal diameter of the metal enclosure in this
projection (8) in the open state and in that the driving shaft (11) runs
parallel to the conductor or conductors (2).
NO NO
70/140
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US4528614 A
Electric control
center having
integral air-
ventilation system
WESTINGHOUSE
ELECTRIC
1983US-0540068
19831007
An improved electric control center comprising a plurality of
drawout type switchgear units housed in a cabinet having
incorporated therein an integral air-ventilation duct system of
modular snap-fitting construction having at least one air intake
opening located at the bottom of the cabinet, one air exhaust
opening at the top of the cabinet, and a plurality of branch ducts
that communicate with a plurality of tandem compartments that are
in stacked relationship and contain the respective switchgear units.
The heat generated by the switchgear units and associated bus bars
is thus removed from the cabinet by the air flow through the
ventilator duct system.
NO NO
GB8414270 D0
JPS602319 U
GB2141586 B
SG2788 G
IN164091 A1
METAL ENCLOSED
SWITCHGEAR
MEIDENSHA ELECTRIC
MANUFACTURING
1983JP-U093770
19830617
A metal enclosed switchgear includes a circuit breaker (8) freely
movable into or out of a cabinet by means of rollers (9) rolling along
the floor (2a) of the cabinet, a rod (23) for operating an earthing
switch and a mechanical interlock (B) between the circuit breaker
(8) and the earthing switch for preventing the circuit breaker (8) from
moving back into an electrically connected position when the
earthing switch is closed. The interlock (8) includes movable roller
stopper (44) which is movable between a pair of stationary guides
(42, 43) fixed to the cabinet floor (2a) to extend into and out of the
path of one of the rollers (9), and a link mechanism (C) which is
interlocked with the earthing switch and which moves the movable
roller stopper (44) into the path of the roller (9) when the earthing
switch is closed. Thus, the load applied to the movable roller stopper
(44) by the impact of the roller (9) is substantially offset by the
reactive force from the stationary guides (42, 43). Additionally, the
circuit breaker (8) is accurately stopped.
NO NO
71/140
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GB8410084 D0
JPS59164412 U
GB2138635 B
IN162148 A1
SG2888 G
JPS6341769 Y2
METAL ENCLOSED
SWITCHGEAR
MEIDENSHA ELECTRIC
MANUFACTURING
1983JP-U058345
19830419
Metal enclosed switchgear includes a box (2) with a bottom (2a), a
circuit breaker assembly (8) being freely carried into or out of the box
(2) on rollers (9) rolling on the bottom (2a), an earthing switch (18), a
rod (23) for operating the switch (18) and a mechanical interlock (A)
between the breaker (8) and the switch (18). The interlock (A)
includes a roller stopper operating rod (29) rigidly secured to the
earth switch operating rod (23), a movable roller stopper (35)
operated by the roller stopper operating rod (29) to be rotated
extending into a path on the bottom (2a) of a roller (9) and a
stationary roller stopper (36) rigidly secured to the bottom (2a) to
contact against the movable roller stopper (35). Thus, an impact
which is effected by an inertia in carrying-in of the breaker (8) can
barely destroy the interlock (A). Additionally, since the interlock (A)
consists of mechanical elements alone, a part of the interlock (A)
which is disordered or destroyed is apparent and ready to repair.
NO NO
72/140
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DE8220008 U1
PT77011 A
NO832371 A
AU1672583 A
BR8303692 A
AR230351 A1
MA19835 A1
ZA8305059 A
GR78877 A1
ES282050 U
TR21878 A
EP0099036 B1
AT16061 T
ES282050 Y
DE3360981 D1
PT77011 B
MX153056 A
AU554054 B2
IN160993 A1
NO159896 C
Electrical metal-clad
switchboard. SIEMENS
1982DE-U020008
19820713
1983DE-3360981
19830701
1983EP-0106451
19830701
Enclosed electrical control panel, having a partition wall (4)
separating a bus bar compartment or cable connection
compartment (3) from a power switch compartment (2), which (4)
comprises apertures (4a) for the penetration of contact arms of an
actuator carriage (5) guidable in the power switch compartment
from a dividing position into an operating position, which (4a) are
covered in the dividing position of the actuator carriage (5) by a pair
of cover plates (6) arranged parallel to the partition wall (4), which
(6) abut each other in the covering position and can be moved
apart by the movement of the actuator carriage (5) into the
operating position, revealing the apertures (4a), by means of a lever
mechanism extending between them and the actuator carriage (5),
which lever mechanism comprises a lever (8) pivotable about a fixed
axis (7) on the interior of a panel side wall (1), characterized in that
the lever (8) comprises two limbs, of which ones is coupled to one of
the cover plates (6) and the other engages with a roller (9) into a slot
(10) of one plate (11) of a pair of plates (11, 11a) ; in that the lever
mechanism is a scissor-type mechanism, consisting of the lever (8)
and a second lever (12), and designed for the raising and lowering
of the cover plates (6) in opposite directions ; in that the second
lever (12) is coupled at one end to the free cover plate (6) and at
the other end engages with a roller (13) into a recessed slot (14)
inclined in the opposite direction to the slot (10) and arranged in the
free plate (11a) of the pair of plates (11, 11a) ; in that the plates of
the pair of plates (11, 11a) are connected to each other and are
displaceably arranged in a fixed mounting plate (15), and in that
there is coupled to the pair of plates (11, 11a) an intermediate lever
(18), on to which a drive lever (20) engages which is deflectable by
the actuator carriage (5).
SI -
73/140
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USD275278 S1 Metal clad
switchgear
WESTINGHOUSE
ELECTRIC
US397257
19820712
FIG. 1 is a perspective view of a metal clad switchgear illustrating my
new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a side elevational view thereof, the other side being a mirror
image; and,
FIG. 4 is a top plan view thereof.
NO NO
JPS592512 A
EP0097951 B1
DE3378608 D1
JPH0145283 B2
JP1561319 C
Metal-clad
switchgear. HITACHI
1982JP-0110026
19820628
A metal-clad switchgear of the type having a switch box (18)
provided with fixed primary isolating devices (7) adapted to be
connected electrically by a circuit breaker when the latter is inserted
into the switch box (18). A shutter (10) is movable for uncovering and
covering the fixed primary isolating devices (7), when the circuit
breaker is moved into and out of the switch box (18). The circuit
breaker comprises a drawout type breaker body (2), and breaker
portions (4) supported by the breaker body (2) and having primary
isolating contacts (6). An inter-phase-insulating barrier (14) is
disposed between the breaker portions (4). An adjusting means is
disposed on at least one side of either the shutter (10) or the inter-
phase-insulating barrier (14) in the form of recesses (16) so that the
edge of the barrier (14) can extend to the ends of isolating contacts
(6), and the shutter (10) will not collide with the inter-phase-insulating
barrier (14), when the isolating contacts (6) are inserted into the fixed
primary isolating devices (7).
NO NO
US4361369 A
CA1154856 A1
Switchgear with
enclosure
WESTINGHOUSE
ELECTRIC
WESTINGHOUSE
ELECTRIC
CORPORTION
WESTINGHOUSE BLDG
GATEWAY CENTER
1980US-0178048
19800814
Metal clad switchgear apparatus is taught which includes a skeletal
arrangement formed from using "five-fold" channel members with
eight unitary corner members. Four type "A" corner members are
utilized and four type "B" corner members are utilized. The "A" and "B"
corner members are formed from utilizing three identical gusset
members in any one of two alternate dispositions. The formed
corners are self-aligning and self-jigging relative to the channels
which interlink them.
NO NO
74/140
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JPS5755708 A
DE3029778 C2
US4424490 A
EP0045715 B1
JPH0113287 B2
JP1532891 C
High-voltage metal-
clad gas-insulated
equipment.
SIEMENS 1980DE-3029778
19800804
In a metal-clad, compressed gas-insulated high-voltage switching
installation, installation parts can be cut off by a circuitbreaker and
connected to the grounded casing by means of a grounding switch,
insulated measuring electrodes connectable to the testing terminal
of a capacitive voltage divider and to a display device being
provided in the casing adjacent to the grounding switch, for
observation of the conductor voltage. To obtain a simple test setup
in a three-phase clad installation, two pin-type measuring electrodes
are arranged respectively centrally between pairs of the three
conductors in such a way that their rounded end protrudes into the
interior of the casing.
NO NO
75/140
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IT8024772 D0 19800919
[IT8024772]
FR2466120 A1 19810327
[FR2466120]
NL8004792 A 19810330
[NL8004792]
DE2939006 A1
19810402 [DE2939006]
BR8006100 A 19810407
[BR8006100]
JPS5652415 U 19810509
[JP56052415U]
ZA8005946 A 19810930
[ZA8005946]
US4316137 A 19820216
[US4316137]
FR2466120 B1 19830624
[FR2466120]
GB2060258 B 19830629
[GB2060258]
IN152916 A1 19840505
[IN-152916]
CH651702 A5 19850930
[CH-651702]
NL178537 C 19860401
[NL-178537]
JPS6138332 Y2
19861106
[JP61038332Y]
IT1149892 B 19861210
[IT1149892]
ATA476080 A 19871015
[AT8004760]
Completely
insulated, metal-
encapsulated
electrical switching
section
SIEMENS 1979DE-2939006
19790926
The arrangement of the outer electrode of a capacitive voltage
transformer designed as a capacitor in a completely insulated,
metal-encapsulated electrical switching section is disclosed. The
outer electrode comprises a tube which is arranged coaxially in a
tubular jacket of the metal encapsulation and is fastened,
electrically insulated, to the tubular jacket. The inner electrode of the
voltage transformer is a conductor concentrically arranged in the
tubular jacket. Between the tube and the tubular jacket, an
insulating tube section is arranged. An insulating bushing extends
through the wall of the insulating tube section and the wall of the
tubular jacket. The insulating bushing is mounted on a metallic
bushing. A head screw clamps the insulating tube section between
the tube and the tubular jacket, and a flange of the insulating
bushing is clamped between the outside of the tubular jacket and a
flange of the metallic bushing. A voltage take-off is secured to the
metallic bushing.
NO NO
76/140
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DK368179 A
NO792831 A
NL7809048 A
AU5027279 A
JPS55117404 A
US4258410 A
AU522239 B2
EP0008821 B11
DE2963489 D1
CA1135389 A1
Metal clad
switchgear.
COQ
SIEMENS
1978NL-0009048
19780904
Metal clad switchgear, comprising in one of the compartments of, or
in a separate casing associated with its envelope a movable
voltage measuring transformer (1) which is adapted to be adjusted
in various positions, in one of which at least one of the high tension
terminals (5) of said transformer is conntected to a conductor (7, 13)
of the switchgear, in another one of which said terminal may be
connected to earth and in still another one of which said terminal
may be dead.
NO NO
DK347079 A
NO792709 A
NL7808616 A
AU4988579 A
JPS5529296 A
EP0008817 A1
Metal clad three
phase switchgear.
COQ
SIEMENS
1978NL-0008616
19780821
Metal clad three phase switchgear the casing of which
accommodates not only the ordinary conductors for the respective
phases of the switchgear but also a terminal conductor (29) leading
through a wall of the casing to the outside and a switch (11), by
means of which each phase conductor (12, 13, 14) can be
individually connected for test purposes with said terminal conductor
either directly or through a test transformer (9), if used.
NO NO
GB1573713 A
HIGH-VOLTAGE
ELECTRICAL
SWITCHGEAR
NORTHERN
ENGINEERING
INDUSTRIES
1976GB-0051479
19771209 NO NO
JPS5438533 A METAL CLAD
SWITCHGEAR TOSHIBA
1977JP-0104777
19770902
PURPOSE: When containing machinery elevatably in switchgear
frame, to block back and for movement of machinery and to
provide anti-seisumic feature by providing sinkable stopper at
elevating frame side and engaging with suspended ear at
contained machine side.
NO NO
JPS5413945 A METAL CLAD
SWITCHGEAR TOSHIBA
1977JP-0079735
19770704
PURPOSE: To prevent induction heating and to reduce cross-section
of bus by locating commercial power bus and generator bus
collectively and making the wire constituting both buses to be
closed circuit.
NO NO
JPS5413944 A
JPS5812802 B2
JP1180887 C
METAL CLAD
SWITCHGEAR MITSUBISHI ELECTRIC
1977JP-0079401
19770701
PURPOSE: To simplify the structure and to facilitate assembling by
employing Tshaped bushing and plug-type bus connector. NO NO
77/140
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JPS5313147 A
JPS5951202 B2
JP1276571 C
METAL CLAD
SWITCHGEAR TOSHIBA
1976JP-0086585
19760722
PURPOSE: To improve safety by installing shutter where shutter blade
opens/closes reliably in accordance with movement of interrupter
thus to shorten movement of interrupter and which can be freely
opened and held open even under closed state.
NO NO
JPS5313146 A METAL CLAD
SWITCHGEAR TOSHIBA
1976JP-0086584
19760722
PURPOSE: To reduce space of automatic shutter mechanism by
installing expandable/contractable separator which can vary area
in front of fixed contactor and performing expansion, contraction
and switching of said separator in accordance with movement of
interrupter.
NO NO
JPS5295040 A METAL CLAD
SWITCHGEAR HITACHI
1976JP-0011376
19760206
PURPOSE: To reduce total floor area by locating cable head
underside of floor of metal-clad switchgear. NO NO
JPS5233048 A
DE2540058 A1
HU172573 B
CH609807 A5
IT1064098 B
METAL-TOTALLY
ENCLOSED,
COMPRESSED GAS-
ISOLATED HIGH
VOLTAGE
SWITCHING STATION
([Machine
Translation])
BROWN BOVERI &
COMPAGNIE
1975DE-2540058
19750909
The high-voltage switching installation has a plurality of switch
panels, each having a power circuit breaker, interrupter circuit
breaker and earthing circuit breaker, and at least one common
busbar. In order to arrange the busbars themselves, as well as the
electrical installation components located between the busbars and
the power circuit breaker and after the latter, such that the
encapsulated phase conductors, which produce the connection
between these components, necessitate the minimum installation
complexity, the respective power circuit breaker (1) is arranged in
the longitudinal part (2) of a T-shaped capsule (3). A busbar (5) can
be flanged onto the capsule (3) at its one end, via at least one end
face of its lateral part (4). The other end face of the lateral part (4)
can be connected to a flange, or a further busbar (13) or other
installation components can be connected thereto. The power
circuit breaker (1) is connected via an interrupter (6) to the busbar
(5), the power circuit breaker drive (7) is arranged on the end face
at the other end of the longitudinal part (2) of the T-shaped capsule
(3), and encapsulated converters (8, 9), an interrupter (10) and an
earthing circuit breaker (11) with a cable outlet (12) can be flanged
on underneath, emerging at right angles.
NO NO
78/140
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DE2547116 A1
US3958156 A
JPS5169174 A
GB1498473 A
CA1050593 A1
VACUUM
INTERRUPTER METAL-
CLAD SWITCHGEAR
VERTICALLY
ELEVATABLE WITHIN
COMPARTMENT
ALLIS CHALMERS 1974US-0516808
19741021
Heading H1N Vacuum interrupter switchgear comprises a three
phase circuit breaker compartment into which extend a plurality of
vertical main and load bus-bars all arranged in a single horizontal
Straight line and a withdrawable three phase circuit breaker unit 22
in the compartment comprising a plurality of vertical vacuum
interrupters 61-66 arranged in a corresponding horizontal straight line
on insulating supports 136-138, each interrupter being associated
with a respective bus-bar so that a terminal contact 61A-66A of
each vacuum interrupter connects with a respective terminal on a
respective busbar when the circuit breaker unit is lifted vertically by
an actuator mechanism. An interlock arrangement 101 prevents
entry of the circuit breaker unit fully into the compartment if the
vacuum interrupters are closed, Fig. 9, not shown. A rating sensing
interlock, Fig. 15, not shown, prevents entry into the compartment of
a circuit breaker unit of an incorrect rating. A shutter, Fig. 6, not
shown, prevents accidental contact with the bus-bar terminals when
the circuit breaker unit is disconnected. The vacuum interrupter
operating mechanism, which is provided with a trip-free linkage
arrangement 112, comprises a drive bar 121 which through cranks
156 moves connecting rods 153 to move the interrupter contacts
146, 147. Circuit breaker tripping may be by solenoid, Fig. 7, not
shown, or manually by release button, Fig. 16, not shown. Movement
of the drive bar can also be arranged to operate any auxiliary
switches, Figs. 11, 12, not shown. The circuit breaker lifting mechanism
95, which may be manual crank or motor 110 via a friction clutch
262, comprises a ball screw 261, ball nut 296 and racking bar 297
which move horizontally and via actuating arms 301 cause rotation
of racking arms 259 about rollers 94 confined within trackways in the
compartment to lift the circuit breaker unit. To prevent the circuit
breaker unit lowering by its own weight turning the lifting mechanism
a one-way clutch and brake mechanism (270) is provided, Fig. 7, not
shown. A visual indication of the condition of the circuit interrupters is
provided by colour coded flags, Fig. 18, not shown.
NO NO
79/140
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CH567341 A5
DE2504499 A1
ATA391175 A
AT335559 B
Metal-clad, MULTI-
PHASE ELECTRICAL
SWITCHGEAR
([Machine
Translation])
SPRECHER & SCHUH 1974CH-0008917
19740628 NO NO
US3806682 A
HIGH-VOLTAGE
GAS-INSULATED
SWITCHGEAR WITH
CAPACITIVE
VOLTAGE DIVIDER
FOR INDICATING
CONTACT POSITION
BROWN BOVERI &
COMPAGNIE
1972US-0294569
19721003
High-voltage metal-clad gas-insulated switchgear apparatus
wherein an isolator switch is mounted in a gas-filled earthed casing
to isolate one conductor part of the apparatus from the other, and
an earthing switch mounted on the casing includes a movable
contact member operable to engage and effect earthing of the
isolatable conductor part by connecting the latter to the earthed
casing. A measuring electrode mounted within the casing and
insulated therefrom forms part of a capacitive voltage divider from
which is derived a voltage the magnitude of which indicates
whether the contacts of the isolator switch are open or closed.
NO NO
NL7214622 A
CH537633 A
JPS4851300 A
US3790695 A
IT969912 B
DE7143424 U
FR2158308 B1
JPS5632843 B2
NL175351 C
DE2157182 C2
ELECTRICAL
INSULATOR OF
POROUS EXPANDED
PLASTICS MATERIAL
BROWN BOVERI &
COMPAGNIE
1971CH-0015795
19711029
An electrical insulator of porous expanded plastics material such as
polyurethane for use within metal-clad high-voltage switchgear and
lines and which are evacuated prior to being filled with a high-grade
compressed insulating gas such as SF6 having an insulating capacity
greater than that of air. Approximately 100 percent of the pores of
the expanded plastics material are open pores so as to prevent
destruction of the pores during the evacuation phase and thereafter
enable the pores to be filled with the insulating gas while in the
normal operating condition of the electrical apparatus. If desired,
the pores adjacent certain surface zones may be closed so as to
reduce the risk of contamination and facilitate cleaning.
NO NO
80/140
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GB834035 A
Improvements in or
relating to high
voltage switchgear
BOLESLAW CZESLAW
CIBOROWSKI
RONALD NORTON
BUTTREY
SOUTH WALES
SWITCHGEAR
1956GB-0030050
19561002
A bushing extension for temporarily connecting a lowered, vertical-
isolating circuit-breaker to the feeder cable or bus-bar for testing
purposes comprises a conductor 10 insulated by a sleeve 17 having
a shroud 19 at that end engaging the circuitbreaker terminal
bushing, the sleeve and shroud being integrally moulded from a
synthetic resin which sets into shape without the application of
pressure, e.g. that known under the Registered Trade Mark "
Araldite." To enable the extension to engage the splayed-apart
terminal bushings of the circuit-breaker described in Specification
728,156, the axis of the shroud is offset from the axis of the sleeve as
shown. The conductor 10 terminates in a plug 8 at its lower end and
the contact springs 15, forming a socket, at its upper end.
NO NO
GB514054 A
Improvements in
cable-end insulators
more particularly for
metal-clad
switchgear
JOHN MELVILLE
GOODALL
THOMSON HOUSTON
1938GB-0011858
19380420
An insulator for insulating the ends of conductors passing through the
metal casing of metal-clad switchgear comprises a unitary body 1 of
insulating material, having cylindrical passages 2 arranged side by
side therein, each passage being divided into two compartments by
a transverse partition 3 having an aperture 4 in which the end of one
conductor can be secured, e.g., by nuts arranged on either side of
the partition. The insulator is secured to the casing, with the
conductors extending upwardly into the apertures, by an
attachment flange 5. Orifices 7, through which connections to the
conductors held in the apertures may be taken, may be provided in
the side-walls of the insulator adjacent the partitions.
NO NO
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GB398890 A
GB398889 A
GB398891 A
FR753024 A
US2009335 A
US2009333 A
US2009334 A
DE641963 C
Metal-clad electric
switch gear
ARCHIBALD ALLAN
REYROLLE A
1932GB-0008768
19320324
Oil switches; fluid actuation.-Metal-clad switchgear comprises a tank
or chamber containing a circuit-breaker or other electrical
apparatus, a chamber containing a bus-bar or like conductor, and
an insulated conductor so mounted that it can project into the
apparatus tank and the bus-bar chamber to connect the bus-bar or
like conductor to a terminal of the apparatus, and can be moved
longitudinally relatively to the bus-bar and to the apparatus terminal
to break such connection, the arrangement being such that. the
insulated conductor can be withdrawn bodily from the bus-bar
chamber towards or into the apparatus tank to facilitate removal of
the latter, together with the insulated conductor, from the switch-
gear. The invention may be combined with the means claimed in
Specification 398,889 for effecting movement of the insulated
conductor by fluid pressure, and with the sealing devices claimed in
Specification 398,890. The arrangements described for carrying out
the invention are identical with those described in one or other of
these Specifications.
NO NO
GB386001 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
HENRY WILLIAM
CLOTHIER
JOHN CHRISTIE
REYROLLE A
1931GB-0019763
19310709
The Specification describes and illustrates the same hand-truck as in
Specification 386,000. NO NO
GB386000 A
Improvements in or
relating to metal-
clad electric
switchgear
ARCHIBALD ALLAN
HENRY WILLIAM
CLOTHIER
JOHN CHRISTIE
REYROLLE A
1931GB-0019762
19310709
For raising a piece of electrical apparatus from the ground and
wheeling it away for repairs &c., two trucks on rails 52 are applied to
lugs 99 on the tank of the apparatus, the trucks having abutment
rollers 222 for taking the weight. Cranks 227 rotate through worm
gearing 226 an arm 225 on the body 220 to rotate the latter about
the axle and raise the apparatus, the latter being propelled by
means of a handle 223 operating by means of a ratchet 224 on the
axle.
NO NO
82/140
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US2029589 A Metal clad switching
unit
ROSSMAN
ENGINEERING
1930US-0440606
19300331 NO NO
IN1348/CAL/1998 A
A METAL CLAD AIR
INSULATED MEDIUM
VOLTAGE
SWITCHGEAR
ASSEMBLY
SIEMENS 1997DE-10345530
19970731
The invention relates to a metal clad, air-insulated medium-voltage
switchgear assembly having a DusDar compartment to
accommodate a number or bushing-like insulation posts, the number
corresponding to the number of phases and each insulation post
having a busbar terminal, and having a terminal compartment to
accommodate a number of bushing-type transformers, the number
corresponding to the number of phases and the transformers each
having a cable terminal. The busbar compartment (SSR) and the
terminal compartment (ASR) are separated from each other by an
insulation-post support plate (STB) and by a transformer support plate
(WTB) in such a way that the bushing-type insulation posts (DFS...)
and the bushing-type transformers (DFW) are arranged with respect
to each other so that they are positioned at a distance and with
mirror-image symmetry in relation to each other, as compact
withdrawable functional inserts in the medium-voltage switchgear
assembly. The medium-voltage switchgear assemblies are used for
power supply and distribution.
NO NO
ITMI992060 A1
WO200126198 A1
AU7910700 A
IT1313321 B1
CN1377515 A
EP1218995 B1
AT242924 T
US6683267 B1
DE60003327 T2
CN1237679 C
GAS-INSULATED
SWITCHGEAR
DEVICE
ABB
ABB RICERCA
ABB SERVICE
1999IT-MI02060
19991001
2000WO-EP09580
20000925
A gas-insulated switchgear device for high- and medium-voltage
applications, comprising an enclosure which contains a
disconnection unit which is electrically connected to a first electric
terminal and is arranged in the enclosure in a substantially central
position, and a first interruption unit and a second interruption unit
which can be connected electrically to the disconnection unit and,
respectively, to a second electric terminal and a third electric
terminal, the first and second interruption units being arranged
mutually opposite with respect to the disconnection unit.
NO NO
83/140
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DE3215234 C2
EP0093225 B1
AT34053 T
Medium voltage
gas-insulated metal-
clad switchgear.
ORMAZABAL
1982DE-3215234
19820423
1983EP-0100149
19830111
Medium voltage gas-insulated metal-clad switchgear, more
particularly for use in mains switching stations, with at least three
switchgear panels (5), which are respectively provided with a three-
pole load-disconnecting switch and an earthing device, with ducts
(6, 6', 6") for connecting ring main cables (7, 7', 7" or 26) and fuses (8,
8', 8") of a transformer tap, and with bus bars (12, 12', 12") for phases
L1 , L2 and L3 , with a common housing (1) which encloses the
switchgear panels (5) in gastight manner, three ducts (6, 6', 6") being
used for each switchgear panel for the selective connection of
cables (7, 7', 7") or fuses (8, 8', 8"), characterised in that the inner part
(9, 9', 9") of each duct (6, 6', 6") is designed in a manner known per se
as a bearing portion element for the fulcrum (11, 11', 11") of the
switch blade of a pole of a load-break switch, that a switch blade
(10, 10', 10") makes direct contact with the respective bus bar (12,
12', 12") resting on the supporting insulator (13) inside the housing and
is switchable by means of an control shaft (19) to the positions "ON"
(14), "OFF" (15) and "EARTHED" (16), and that the control shaft (19) of
a three-pole load-disconnecting switch is disposed inside the housing
(21) on one side and the other side (22) is guided outwards in a
gastight manner.
NO NO
84/140
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TH38885 A
Switchgear units
containing gas and
a metal cladding
and a container
containing gas.
1999TH-1000607
19990225
This invention relates to a switchgear memory containing the gas.
And encased in metal. Particularly relevant. The switchgear for
medium voltage engineering. With the discharge circuit is included
in third position at the cupboard containing gas and a cutting cycle.
In particular, the vacuum circuit breaker box with a sleeve for a
release cycle of three positions. Bus bar placed outside the cabinet.
The casing for the machine. Circuit with the cable. Of the
switchgear. Which are outside the switchgear cabinet is used. By a
modular switch. (SF), which in each case has a switch that is sealed
air-tight (R1) with a discharge cycle three positions (DS) and the bus
bar (SS) and a switch to a sealed air-tight (. R2) with a circuit breaker.
The room in which the first and second switches (R1,. R2) are
connected by a modular splicing device with a gas-tight (MK), and
in each case there is a gas-tight cable sheath (KD).
NO NO
DE102011085099 A1
EP2587599 A1
CN203150991 U
Electrical
switchgear,
especially medium
voltage switchgear
OF SCHNEIDER
ELECTRIC SAXONY
WEICK LIABILITY
SCHNEIDER ELECTRIC
SACHSENWERK
2011DE-10085099
20111024
The switchgear has a control panel including a metallic grounded
housing. Electrical components are accommodated in the housing,
and a set of metallic top parts is provided within the housing. The top
parts are electrically connected with the housing and designed such
that base points for light-arcs emerge opposite to each other. The
top parts are arranged in a location within the housing and
arranged adjacent to cable connections (15-17) and electrical
cables (18-20). The top parts form a comb series of light-arc arresting
devices (25, 26) e.g. curved Sheet metal parts.
NO SI
TH28314 A
Medium-voltage
switching stations
with passageway for
the panel.
1997TH-1001188
19970328
This invention relates to a medium voltage switching stations that
case. Particularly associated with the station. Removable air circuit
breaker. With a removable panel. The lid is off the bottom for the
panel. Cover the bottom (BA) has been used by the public. (FB),
which folded. The switch panel (SF) on the switchboard is in transit
and on the switchboard. (SF) is in an operational state. Can be
folded out below. Above the bottom edge of the cover (BA) cover
below is intended for a cable or bus bar. With a panel of switches.
NO NO
85/140
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CN202840346 U
High voltage
observation window
of medium voltage
armored
withdrawable metal
enclosed switch
cabinet
HAODE ELECTRICAL 2012CN-U431909
20120828
The utility model discloses a high voltage observation window of a
medium voltage armored withdrawable metal enclosed switch
cabinet. The high voltage observation window is installed in an
observation hole of a switch panel of the middle-voltage armored
withdrawable metal enclosed switch cabinet and comprises an
observation window front frame, an observation window rear frame,
pads and toughened glass. The observation window front frame and
the observation window rear frame are installed on the switch panel
through fasteners and are positioned on the external surface and
the internal surface of the switch panel respectively. The observation
window front frame and the observation window rear frame are
hollow. The pads and the toughened glass are clamped between
the observation window front frame and the observation window
rear frame. Compared with the prior art, the high voltage
observation window is advantageous by high safety performance
and is more convenient to be replaced after being damaged.
NO SI
TH17441 A
Medium voltage
switch panel metal
box with the switch.
Rooms, a bar and a
bus terminal.
1994TH-1000722
19940419
Panel switch boxes, metal voltage, medium (1) with the switch (2)
Rooms bus bar (4) and a connector (10) bus bar (4) and a
connector (10) is included in the. one case (31) as the framework for
the front door (7) of the switch (2). And at least part of the switch (2)
is a component of the sample. Second housing (32) to select the
third body (45) between the housing one. (31) with the second
housing (32) so as to make the switch panel by a partition plan which
the barrier. Prepared with bushing for barrier separating the
electrodes were placed between. Room between the switch (2) to
the next room, two rooms (4, 10).
NO NO
EP2568549 A1
Modular housing for
medium voltage
switchgear
MOELLER 2011EP-0180846
20110912
The invention relates to a modular housing for medium voltage
switchgear comprising; - a housing having a number of housing
modules arranged in line with each other and two end plates
arranged on either side of the housing; and - medium voltage units
arranged separately in each housing module.
NO SI
86/140
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CN202696033 U
Monitoring structure
of medium-voltage
armored type
metal-enclosed
switchgear
WUHU MINGYUAN
POWER EQUIPMENT
MANUFACTURE
2012CN-U221026
20120517
The utility model discloses a monitoring structure of a medium-
voltage armored type metal-enclosed switchgear. A rear lower door
(1) is provided with a multifunctional valve (3), the multifunctional
valve (3) is installed on the rear lower door (1) through a hinge (14)
and provided with an observation window (2), the observation
window (2) is covered by glass (4), and the glass (4) is installed on the
multifunctional valve (3) through a horizontal sliding chute on the
multifunctional valve (3). By adopting the technical scheme, the
testing technology for the switchgear is further improved, the running
reliability of the switchgear is enhanced, the potential safety hazard
in operation is eliminated, and the switchgear and personnel life
safety is ensured. The monitoring structure realizes multiple functions
of observation, temperature measurement, electricity testing,
grounding window and the like, and is simple in working principle
and structure, simple in manufacturing process of parts, and
convenient in installation of the parts.
NO SI
EP2530797 A1
WO2012163723 A1
Medium voltage
switchgear ABB TECHNOLOGY
2011EP-0168512
20110601
A medium voltage switchgear (1) which is characterized in that it
comprises a casing (2) defining an internal volume for housing at
least a circuit breaker assembly (4) movable between at least two
operative positions, said casing comprising a front panel (21)
provided with an opening (5) for the insertion of an operating handle
for actuating the movement of said circuit breaker assembly
between said operative positions, a closing and retaining device
being positioned in correspondence of said opening (5) and
movable between a closed position when said operating handle is
not inserted and an open position for allowing insertion of said
operating handle, said closing and retaining device comprising
locking means for retaining said operating handle in position when
inserted in said opening.
NO SI
87/140
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EP2525456 A2
DE102011076040 A1
CN202996624 U
Absorber device for
switchgear
SCHNEIDER ELECTRIC
SACHSENWERK
2011DE-10076040
20110518
The absorber device (100) has absorber elements (110a-110c) that
are arranged in series with respect to a flow direction (S). The flow
resistance of absorber element (110b) is higher than flow resistance
of absorber element (110a). A pressure channel (102) is provided for
receiving the absorber elements. The distance (d) between two
adjacent absorber elements is greater or equal to about a root of a
cross-sectional area of absorber elements.
NO SI
WO2011116985 A3
DE102011015066 A1
AU2011231921 A1
CN102870184 A
US2013020182 A1
EP2550670 A2
SWITCHGEAR
ASSEMBLY FOR
MEDIUM VOLTAGE
HAVING A SHORT-
CIRCUIT UNIT
ABB TECHNOLOGY
2010DE-10012827
20100325
2011DE-10015066
20110324
2011WO-EP01523
20110325
A voltage switchgear assembly is disclosed, which includes a short-
circuiting unit having short-circuiting devices arranged as a three-
phase unit. A support is configured to receive the short-circuiting unit
and is configured to be inserted into and withdrawn from an
openable section of a switchgear assembly housing.
NO SI
DE102009032540 A1
EP2273524 A3
Earthing switch, in
particular for a
medium voltage
switching assembly
AREVA
ENERGIETECHNIK
2009DE-10032540
20090710
The earthing switch (10) has a movable contact (12) moved from an
open position to a closed position and vice versa. A fixed contact
(11) and the movable contact comprise respective worn contacts
(21, 28) made of electrically conductive material with high melting
point. The worn contacts are designed and/or arranged such that
foot points (33) are determined in identifiable areas of the worn
contacts. The fixed contact comprises a leg (17) that is attached to
the worn contact of the fixed contact.
NO NO
EP2273634 A1
DE102009032539 A1
Electric switch
assembly, in
particular medium
voltage medium
voltage switching
assembly
AREVA
ENERGIETECHNIK
2009DE-10032539
20090710
The switchgear has a control panel provided with a metallic housing,
and electrical cables (18) provided in a cable terminal
compartment and attached to a phase of an electrical power
supply. An elongated electric arc stabilizer (24) is provided between
the electrical cables of different phases and arranged in a region in
which the electrical cables extending within the cable terminal
compartment. The stabilizer is metallically formed, is fixedly attached
to the housing, and exhibits a U-shaped cross section.
NO NO
88/140
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WO2010086364 A1
DE102009006951 A1
EP2248236 B1
MEDIUM- OR HIGH-
VOLTAGE
SWITCHGEAR
IGEL ELECTRIC
IGEL ELEKTRONIK
2009DE-10006951
20090130
2010WO-EP50989
20100128
The invention relates to a medium- or high-voltage switchgear
comprising a system housing (1), a low-voltage control unit (24), a
cable connection space (4), a busbar system (5, 6), and a slide-in
module (20) for power sections (23) that can be slid into and out of
the system housing (1), wherein the system housing (1) is designed as
an outer housing open at the front, the slide-in module (20) is
designed in such a way that the slide-in module can be slid into and
out of the system housing (1), and the slide-in module (20) comprises
a permanently installed front door (20) for hermetically sealing the
opening formed by the system housing (1). For simplified repair and
maintenance, the slide-in module (20) comprises the low-voltage
control unit (24) in addition to the power section (23).
NO NO
CN201230161 Y
Middle pressure
metal enclosed
switch device
SHIJIAZHUANG KELIN
ELECTRIC EQUIPMENT
2008CN-U077688
20080627
The utility model provides a closed medium-voltage metal
switchgear. When a fault occurs among the functional
compartments of the prior closed metal switch, mutual isolation and
the heat-dissipating channel are imperfect and cannot meet the
requirements of users. The switchgear comprises a body. The
switchgear has the following characteristics: along a vertical
direction, the body is divided into a bus chamber, a medium-voltage
breaker chamber and a cable chamber; wherein, the bus chamber
is located on the upper side; moreover, a channel used to release
pressure is arranged on the top of the bus chamber; the medium-
voltage breaker chamber is located in the middle; the cable
chamber is located on the bottom; and moreover, the medium-
voltage breaker chamber and the cable chamber are respectively
connected with the pressure-releasing channel and partitioned from
each other. Since the body of the switchgear is divided into the
three independent chambers and provided with a relatively
independent pressure-releasing channel, when a chamber goes
wrong, pressure can be released, so that another chamber cannot
be affected.
NO NO
89/140
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DE102007011386 B8
Wind-hanging
medium-voltage
switchgear for use in
building, has switch
cabinet divided into
several fields and
extending gas guide
over fields at rear
side of switching
cabinet, where gas
exhaust port is
provided from
interior of cabinet
ELEKTRO MONTAGE
NORD
2007DE-10011386
20070307
The switchgear has a switch cabinet (8), in which switching devices
are arranged. A fastening unit attaches the switch cabinet to a wall.
The switch cabinet is divided into several fields (2, 4, 6) and extends a
gas guide over several fields at a rear side of the switching cabinet.
A gas exhaust port is provided from an interior of the switch cabinet.
Each field is provided with a flow channel that extends to a
deflecting region on the basis of the gas exhaust port.
NO NO
DE102007003639 B3
WO2008087120 A1
EP2109924 B1
AT471585 T
DE502008000799 D1
ES2345960 T3
ELECTRICAL SYSTEM,
IN PARTICULAR
MEDIUM VOLTAGE
SWITCHGEAR
SIEMENS
2007DE-10003639
20070116
2008WO-EP50349
20080114
The electrical system has a pressure discharge channel (11) closed
on an end side and extending parallel to a front side of the electrical
system, where the pressure discharge channel has an inflow opening
for connecting metal-capsuled functional module (1) with the
pressure discharge channel. Discharge slots run transverse to the
pressure discharge channel, and are covered by covering plates. A
deflection plate (25) is fastened to the electrical system or the
pressure discharge channel and partially covers the pressure
discharge channel and possesses reference bending points (27).
NO NO
90/140
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WO2007057460 A3
DE102005056189 B4
EP1952497 A2
ELECTRIC SYSTEM,
ESPECIALLY MEDIUM-
VOLTAGE
SWITCHGEAR, AND
PRESSURE RELIEF
DUCT FOR SUCH A
SYSTEM
SIEMENS
2005DE-10056189
20051121
2006WO-EP68663
20061120
Disclosed is an electric system, especially a medium-voltage
switchgear, comprising at least one metal-enclosed functional
module (1, 1') and a pressure relief duct (11) which extends parallel
to a front face of the electric system, is closed at each end, and is
provided with at least one inlet (12, 13, 14, 15) located on the
bottom thereof to join the respective functional module (1, 1') to the
pressure relief duct (11), and several discharge slots that extend
perpendicular to the pressure relief duct (11) and are covered by
means of covering metal sheets (21, 21') which are disposed at a
distance above the discharge slots (23, 23') and have a width
matching the width of the discharge slots (23, 23').
NO NO
DE102006050477 B4
Mid voltage range
switching systems
has a fixed contact
and moving contact
within a plasma
sealed area
ABB TECHNOLOGY
2005DE-10050578
20051021
2006DE-10050477
20061020
The unit has a contact chamber [4] within a housing [2]. The isolated
contact shaft [1] of the pole piece [10] moves within a funnel
shaped cover [5] and this provides hermetic sealing. A plasma
sealing bulkhead separates the space into two regions to protect
against arcing.
NO NO
ES2212747 B1
FR2849968 B1
Transformer sub-
station for
controlling auto-
protective
transformer, has
medium voltage
equipment having
earthing switch that
can only be
controlled if function
of supply lines of bar
of principal circuit
are open or
connected to earth
GRUPO ORMAZABAL
GRUPO ORMAZABAL
S A
2003ES-0000075
20030114
2004FR-0000295
20040114
Transformer sub-station has a transformer (5), and a medium voltage
equipment (4). Medium voltage equipment includes earthing switch
(18), connecting bars of principal circuit (10) to earth, that can only
be controlled if the function of supply lines of the bar are open or
connected to earth. Transformer is connected to bars of principal
circuit using plug-in connector (19).
NO NO
91/140
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WO02075884 A1
CN1377111 A
DE10114742 C1
US2004114289 A1
MXPA03008534 A
EP1371121 B1
DE50202215 D1
PT1371121 E
ES2236507 T3
US2006050470 A1
US7054143 B2
CN1270420 C
ELECTRICAL
INSTALLATION
COMPRISING A
DECOMPRESSION
CHANNEL
SIEMENS
2001DE-1014742
20010320
2002DE-5002215
20020311
2002WO-DE00933
20020311
2003US-0472597
20030922
2005US-0220706
20050908
The invention relates to an electrical installation, especially a
medium-voltage switchgear, comprising at least one encapsulated
function module (FM), a decompression channel (DK) which is
connected to said function module, and at least one inflow opening
(EO...) which connects the function module (FM) to the
decompression channel (DK). The covering surface (DF 1,2,3) of the
decompression channel (DK), opposite the inflow opening (EO...),
comprises at least one partial region which is obliquely oriented in
relation to the inflow direction. Hot gases and high pressures
produced during an accidental arc can thus be evacuated from
the installation, without any risk to humans and buildings. Pressure
channels are used, inter alia, in installations used in relation to
medium-voltage technique for providing and distributing energy.
SI -
WO02061903 A1
DE10104890 A1
CA2437106 A1
EP1356560 A1
US2004100757 A1
MARINE MEDIUM
HIGH VOLTAGE
SWITCHBOARD
PLANT
FEAG
FERTIGUNGSCENTER
FUER ELEKTRISCHE
ANLAGEN
SIEMENS
2001DE-1004890
20010201
2002WO-DE00293
20020128
The invention relates to a medium high voltage switchboard plant for
ships, trains, train power supply systems, etc., that is composed of a
plurality of switch cabinets, the individual switch cabinets having low
voltage fields with automatic electrical control devices and medium
high voltage fields with power switches.
NO NO
DE10041130 C1
ATA13172001 A
AT413167 B
MV switchgear
apparatus has
function modules
each provided with
pressure venting
channel coupled to
pressure venting
space
RITTER
STARKSTROMTECHNIK
2000DE-1041130
20000821
The switchgear apparatus has a closed housing incorporating a
number of encapsulated electrical function modules (2) and
provided with a pressure venting space (3). Each of the function
modules has a number of function spaces (5,6,7), which are
separated from one another and coupled to the pressure venting
space directly, or via a pressure venting channel positioned at the
side. Each pressure venting channel is open on one side, with the
pressure venting channels of 2 adjacent function modules
cooperating to provide a closed pressure venting channel.
NO NO
92/140
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PL344093 A1
PROTECTIVE
AND/OR CONTROL
DEVICE, IN
PARTICULAR THAT
FOR A MEDIUM-
VOLTAGE
SWITCHGEAR
OS BAD ROZWOJOWY
AUTOMAT I
2000PL-0344093
20000523
2000PL-0344093
20001122
NO NO
DE19845775 A1
WO200017974 A1
NO20011484 A
NO319442 B1
EP1116309 B1
AT405977 T
DE59914850 D1
ES2310053 T3
MEDIUM-VOLTAGE
SWITCHGEAR WITH
DISCHARGE
CHANNELS FOR
EVACUATING ARC
DECOMPOSITION
PRODUCTS
SIEMENS
1998DE-1045775
19980922
1999WO-DE03084
19990922
The invention relates to medium-voltage switchgear comprising one
or more compartments, for example compartments for receiving
switchgear and compartments for cable connections, as well as
discharge channels through which in case of an arcing fault hot arc
decomposition products are evacuated to the outside through
defined blow-out openings for cooling and pressure reduction. Each
of the blow-out openings (AO) is sealed in a gas-tight manner by a
filter unit (FE) and the filter units (FE) are arranged in filter housings
(FG) and provided with at least two gas-permeable support
elements (SE..) which are positioned substantially at right angles to
the direction of flow and between which gas-permeable mat filters
(FM) are situated. Such passive filter units used in medium-voltage
switchgear for retaining solid particles in case of arcing faults.
NO NO
PL322153 A1
PL188282 B1
ENCLOSED MULTIPLE-
COMPARTMENT
MEDIUM VOLTAGE
AC SWITCHGEAR
ELEKTROMONTAZ 1
KATOWICE
1997PL-0322153
19970916 NO NO
93/140
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DE19737178 A1 Pressure-proof
switching cubicle
LEUKHARDT EN
AUSRUESTUNGEN
GMB
1997DE-1037178
19970826
Has stiffening section at least on one cubicle edge, extending partly
along it and engaging with corresponding wall's free end. A
pressure-proof switching cubicle, especially for low or medium
voltage switching plants, has walls (4,5) which are designed as
reinforced in its regions forming the edges (6,7) of the cubicle (1-3)
for increasing its ability to be pressure-proof. At least on one edge of
the cubicle is provided a stiffening section (21) which extends at
least along one part of the edge and is in engagement via a
serration with the free end of the wall assigned to the edge of the
cubicle. In the stiffening section are provided a number of openings
(26) located especially along the edge of the cubicle. AT the free
end of the wall are provided a number of lugs corresponding
especially to the number of openings.
NO NO
WO9819377 A1
DE19646547 A1
NO992118 A
EP0935832 B1
AT212759 T
DE59706264 D1
DK0935832 T3
ES2172016 T3
NO316681 B1
MEDIUM VOLTAGE
SWITCHGEAR WITH
ACCIDENTAL ARC
ABSORBER DEVICE
SIEMENS
1996DE-1046547
19961031
1997DE-5006264
19971031
1997WO-DE02572
19971031
The invention relates to a medium voltage switchgear with one or
more function compartments for accommodating switching device
and/or cable connections and/or omnibus bars. The medium
voltage switchgear (MA) is equipped with at least one absorber
device (AB, and/or AR or AS) for accidental arcs, allocated in each
case to one function compartment (BR and/or DR or KS). At least
one of the absorber devices (AB and/or AR or AS) allocated to the
function compartment (BR and/or KR or KS) is led through the rear
and/or lateral region of the medium voltage switchgear (MA).
Accidental arc absorber devices are used for example in medium
voltage switchgears in order to reduce pressure and absorb heat.
NO NO
94/140
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DE29622657 U1
DE19645304 C2
Electrical System for
the Medium Voltage
Range
RITTER
STARKSTROMTECHNIK
1996DE-1045304
19961025
1996DE-2022657
19961025
The switchgear device (1) uses encapsulated electrical function
modules (2) with MV function spaces coupled to a pressure venting
channel (4) via emergency pressure venting elements. The pressure
venting channel leads to at least one opening (5) in the
encapsulation housing, provided with a damping element (3) for
absorbing the thermic energy and the pressure wave resulting from
internal arcing. The damping element is provided by a capsule fitted
in the damping opening with a number of flow resistances and
deflector elements acting as absorption elements for the thermic
energy.
NO NO
DE19609587 C2
High current
medium voltage
switchgear or
switch-bay with
cable connection
ALSTOM
SACHSENWERK
1996DE-1009587
19960312
A medium voltage switchgear apparatus has at least two cable
plug-in points for one phase conductor, these being parallel. The
distance between them is at least the diameter of the cable plug
connector. The connections are surrounded by a common ring
transformer(8). On a multi-phase switchgear panel, the cable
connections to the phases are beside one another in a horizontal
plane and the plug connector to one phase lies in a plane that is
between 30 and 60 degrees (but preferably 45 degrees) to the
horizontal.
NO NO
95/140
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WO9713264 A1
US5689097 A
EP0853811 A4
US5892195 A
CA2233484 C
ARC-RESISTANT
SWITCHGEAR
ENCLOSURE
ABB
ABB POWER T & D
1995US-0538448
19951003
1996WO-US14315
19960906
1997US-0900422
19970725
An improved arc-resistant switchgear enclosure is disclosed. The
disclosed arc-resistant switchgear enclosure provides a cost effective
structure to collect and channel the pressure and hot exhaust gases
from lower compartments and safely vent these gases through the
switchgear enclosure. In preferred embodiments, an internal arc
chamber is formed by assembling modules and creating a void
within the center of the switchgear enclosure. As multiple
compartments or modules for a switchgear enclosure are
connected, an arc chamber is created within the enclosure. Upon
initiation of an arc fault within a particular compartment, a relief flap
or cover for that particular compartment opens to channel the
pressure and the gases into the internal arc chamber or directly
through the top of the enclosure. Pressure and gases are vented into
the internal arc chamber and flow horizontally through the arc
chamber until a path to the top of the switchgear enclosure is
reached. These, pressures and hot gases are then channeled
upward and safely out of the switchgear enclosure. Also disclosed is
a ventilation system for an arc-resistant switchgear enclosure that
provides natural ventilation while preventing any arc gases from
entering the lower, ventilated compartment(s), and that permits
proper venting of pressure arc gases if originated in the ventilated
compartment(s).
NO NO
DE29518834 U1
DE19534828 C1
Electrical System for
the Medium Voltage
Range, in particular
Switchgear
RITTER
STARKSTROMTECHNIK
1995DE-1034828
19950920
1995DE-2018834
19950920
Heavy currents are conveyed by busbars in a channel (6) with
connections (7) on both sides of an electric functional module
containing elements under the control of electronic circuits. The
busbars are in the form of helical lines (5') wound around a
substantially horizontal axis (8). The ratio of the minimum diameter of
the helix to its length (l) is chosen so that the circuits are not
influenced by the magnetic fields from the busbars.
NO NO
96/140
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DE3927835 A1
WO9103089 A1
EP0447503 A1
ENCAPSULATED
MEDIUM-VOLTAGE
CUBICLE.
RITTER
STARKSTROMTECHNIK
1989DE-3927835
19890823
Encapsulated and compartmented medium-voltage cubicle (20)
with withdrawable carriages or crates (12) for the connection as
desired of an output to one of the two busbars (3) of a twin-busbar
installation by means of a connector (10) arranged on the carriage
or crate (12), with plug connections (28, 30; 32, 4, 34) which are
insertable or removable with the carriage or crate (12) and with low-
voltage switchgear to control and indicate the operation of the
cubicle (20), in which the cubicle (20) has compartments (A1, A2; B1,
B2; C, D) divided off from one another for a first busbar (SS1), a
second busbar (SS2), a first connector (10), a second connector (10),
an output (41) and low-voltage switchgear (D). In addition, there are
pressure-relieving devices like flap-valves (e.g. 50, 52) leading out of
the compartments reserved for medium-voltage
switchgear.According to the invention the compartments (A1, A2;
B1, B2; C, D) are fitted in a shared casing (74) forming a circuit
compartment (2), where the casing (74) surrounds an encapsulated
pressure-relief compartment (E) and the compartments carrying
medium voltage equipment are arranged so that they adjoin either
the top of the casing or the pressure-relief compartment.
NO NO
97/140
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DE3743245 A1
Metal-encapsulated
electrical medium-
voltage switching
installation
ABB 1987DE-3743245
19871219
A metal-encapsulated electrical medium-voltage switching
installation has a metal housing (11) which accommodates switching
devices. This metal housing (11) has assigned to it a fuse housing (22)
for accommodating high-current, high-voltage fuses (23, 24 and 25).
Bushings having bushing bolts (26) are provided between the fuse
housing (22) and the metal housing (11). Connecting conductors to
the individual switching devices (L1, L2, L3), which are associated
with the bushing bolts on a phase by phase basis, are connected to
those bushing ends of said bushing bolts (26) which open in the
interior of the metal housing (11), that is to say of the switching
device area. In order to make the fuse housing (22) able to
withstand increased short-circuit currents without further measures,
the cross-sections of the connecting conductors (29, 30, 31) are
dimensioned such that they can carry the rated current continuously
but melt like fuses in the event of short-circuit currents. <IMAGE>
NO NO
IT7928187 D0
NO794238 A
WO8001440 A1
DK365180 A
EP0020596 B1
AT1534 T
DE2856187 C2
IT1126596 B
Switch-over device
for medium voltage
switching stations.
BROWN BOVERI &
COMPAGNIE
1978DE-2856187
19781227
1979EP-0901567
19800714
1979WO-CH00155
19791203
The multipolar switching device which can be utilized in particular to
switch a power interruptor from a set (I) of bus bars to another set (II)
of bus bars in a switching station of average power, is achieved
according to the principles of an interruptor disconnected by
withdrawal and placed between the two sets of bus bars in such a
way that each terminal of a switching device may be connected
with a phase lead to either of the two sets of bus bars.
NO NO
98/140
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EP2568554 A1
An integrated
support for fixing
electrical buses
ABB TECHNOLOGY 2011EP-0460047
20110912
The invention relates to an integrated support for fixing electrical
buses in medium-voltage distribution switchgear. The support
incorporates a base (1) with areas for fixing the support to a wall of
the casing of a medium-voltage distribution switchgear, at least
three tubular parts (2) forming a cover (3) for the buses and
extending from the base (1), each tubular part with an internal and
longitudinally extending phase compartment (2a), and a shelf (4)
which is common for all tubular parts (2) and which connects all
tubular parts (2) with one another at a predetermined distance from
the base (1). On one side the shelf (4) has fixing surfaces (4a) with
ports for bolts for fixing the buses. On the other side of the shelf (4)
between the phase compartments (2a) partition walls (5) are
formed. The support is made of a thermoplastic material by the
injection molding method or injection molding with pressing or
forming. All walls present in the support structure are less than 6 mm
thick. The support production cycle lasts from a few seconds to
several dozen seconds.
NO SI
WO2011020512 A1
SWITCH MODULE
FOR MEDIUM-
VOLTAGE
SWITCHGEAR AND
MEDIUM-VOLTAGE
SWITCHGEAR
SIEMENS 2009WO-EP60776
20090820
The aim of the invention is to devise a switch module (1) for medium-
voltage switchgear, which module allows the switch position of the
disconnector (10) to be detected in a simple manner. The switch
module (1) for medium-voltage switchgear according to the
invention has a housing (2) in which a disconnector (10) having a
disconnector stationary contact (11) and a disconnector moving
contact (12) are arranged, a viewing window (8) being arranged on
the housing (2) in such a manner that the switch position of the
disconnector (10) is directly visible from the outside.
NO NO
99/140
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WO2010142302 A1
CA2764613 A1
AU2009347607 A
SG176699 A1
CN102484361 A
JP2012529881 A
IN9668/DELNP/2011 A
KR20130065560 A
EP2441143 B
METAL
ENCAPSULATION
FOR SWITCH GEAR,
AND METHOD FOR
MANUFACTURING
THE SAME
ABB TECHNOLOGY 2009WO-EP04100
20090608
The present invention relates to a metal encapsulation for switch
gear, and method for manufacturing the same, according to the
preamble of claims 1 and 6. In order to make the manufacturing
easier, it is disclosed, that the metal blanks have the shape of a
defolded box, in which perforations are implemented along
predetermined folding lines, and that the metal blanks are folded to
a 3-dimensional encapsulation.
NO NO
DE202008009101 U1
Sensor arrangement
for short-circuit
collection in
electrical medium-
voltage switchgears
([Machine
Translation])
HORSTMANN H 2008DE-20009101
20080708
Sensor arrangement (1) for short-circuit collection within the range of
conductors of an electrical medium-voltage switchgear (2) with at
least one sensor (8), which from a toroidal coil (12) with a circular iron
core (10) for a conductor an enclosing arrangement exists, by the
fact characterized that the sensor (8) in such a manner with a
passage (18) exhibiting plastic carrier part (of 20) in one to the
passage (18) concentric arrangement of the toroidal coil (12) and
the iron core (10) to an assembly unit (22) is connected that the
assembly unit (22) by simply putting on with the passage (18) on a
conductor execution (6) of the switchgear (2) mountable and is
fixable.
NO NO
DE202004016811 U1
Medium voltage
switching system
switch carriage has
multi-pole vacuum
switch breaker on
base frame with
poles connected to
medium voltage
fuses via high-
voltage lines,
contact fixings,
bracers
SCHALTER SCHMIDT 2004DE-20016811
20041030
The device has a chassis (13) with wheels and a base frame (5) with
a housing (11) and a switch device with contact fixings and bracers,
fuses and connecting lines. The switch device is a multi-pole vacuum
switch breaker (10) installed on the base frame inside the housing
above the chassis whose poles are each connected to a medium
voltage fuse (8) via high-voltage proof connecting lines (6) and
contact fixings and medium voltage bracers (3,9) on the base frame
NO NO
100/140
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US2003184936 A1
CN1447123 A
JP2003299215 A
US6870719 B2
EP1348970 B1
AT365332 T
DE50210346 D1
ES2287236 T3
CN100443906 C
JP4444574 B2
Check for plausibility
of current
transformers in
substations
ABB
ABB SCHWEIZ
2002EP-0405235
20020326
The method involves determining the current system topology based
on the existing electrical connections of primary equipment (3-9)
and positions of switches in the plant control system (2), identifying a
zone (1a-1c) representing a conductively connected area bounded
by a current converter and possibly open switches, detecting and
summing measurement signals in the zone to identify problematic
current converters (7). Independent claims are also included for the
following: a computer program and a device for plausibility
checking of current converters in sub-stations and an electrical
switching system with an inventive device.
NO NO
WO03056594 A1
AU2002360103 A1
EP1459343 A1
US2005013077 A1
CN1610959 A
JP2005513749 A
RU2004123205 A
US7218493 B2
CN1331178 C
RU2321916 C2
IN240862 B
CIRCUIT BREAKERS
WITH INTEGRATED
CURRENT AND/OR
VOLTAGE SENSORS
ABB TECHNOLOGY
ABB TECHNOLOGY
ABB TEKNOLODZHI
2001EP-0205245
20011228
2001EP-2052452
20011228
2002EP-0795293
20021227
2002WO-EP14887
20021227
A circuit breaker ( 100 ), in particular a medium voltage circuit
breaker, having a current ( 20 ) and/or a voltage measuring device (
30 ) integrated thereon. The integration can be functional and/or
physical. The functionally integrated current and/or voltage
measuring device provides primary current and voltage
representative signals to an on-board electronic device ( 50 ) in
order to realize the measure, process, and protection functions as a
whole.
NO NO
FR2735913 B1
Medium voltage
three=phase switch
for emergency
electricity continuity
ALSTOM 1995FR-0007494
19950622
The switch has vacuum ampules providing switches and 90 degree
rotation modules providing cell coupling. A first set of ampules (CL')
are stacked vertically with input voltage contacts (B') and a second
set (CEL') rod converted (16A,16B,16C) and also vertically stacked in
the same plane to the first with voltage contacts (B"). The third
module set (CEL1) is placed below and between the first two sets,
with three phase sectioners (7A',7B',7C') rotating to make or break
with the connecting rods between the first two modules. The
ampules are commanded remotely, and the whole unit is contained
in a removable drawer.
NO NO
101/140
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DE29504580 U1
WO9627934 A3
CN1177422 A
EP0813763 B1
DE59600680 D1
CN1051651 C
SWITCH
DISCONNECTOR
CUBICLE IN
ENCAPSULATED
MEDIUM VOLTAGE
SWITCH
INSTALLATIONS
SIEMENS
1995DE-2004580
19950308
1996DE-5000680
19960301
1996WO-DE00416
19960301
Switch disconnector cubicles with three-position switches arranged
in load break chambers with driving modules are disclosed, as well
as cut-out chambers of encapsulated medium voltage switch
installations with gas-filled containers for connecting simple or
double bus bar systems. The load break chambers (LSK) are
arranged in gas-filled container (GSB) at right angles to its front side,
whereas the cut-out chambers (SSK) are arranged outside container
(GSB), parallel to the load break chambers. Switch disconnector
cubicles of said type are used in power switch installations of
medium voltage switch installations.
NO NO
DE19502063 A1
Three-way switch for
gas-encapsulated
MV switch appts.
SIEMENS 1995DE-1002063
19950113
The switch is mounted in the gas-filled housing receiving the vacuum
switch tubes with their axes perpendicular to the housing front wall,
at a point above the vacuum switch tubes, via a mounting plate
(MBL) secured to the housing sidewall. The switch separation shaft
(TRW) extends at right angles to the container front wall, the
mounting plate bent double at the reception points for the contact
supports (KS), with knife contacts (KM) within a knife contact housing
(KMG) brought into direct contact with earth contacts (EK)of the
mounting plate, upon rotation of the switch separation shaft.
NO NO
DE102012213969 B3 Switchgear SIEMENS 2012DE-10213969
20120807
In Order a Switchgear (1), in particular a polyphase an air-insulated
Medium-voltage Switchgear with a Bus Bar Range (2), a Switch
Range (3) and a Cable Outlet Range (4) as well as a Current
Transformer Arrangement for the Determination over the individual
Phases of the Switchgear (1) of led River, to train further, which has a
compact Structure with simultaneous improved Heat Dissipation, is
suggested that the Current Transformer Arrangement for each Phase
exhibits a Boulder Stream transducer (20, 21, 22), which within the Bus
Bar Range (2) of the Switchgear (1) at Connecting Cables (14, 15,
16) to Connecting the Bus Bars (11, 12, 13) with the Switch Range (3)
is fastened.
NO SI
102/140
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RO128456 A2
MEDIUM VOLTAGE
APPARATUS IN
METAL CASES () FOR
SECONDARY POWER
SUPPLY
INSTITUTUL NATIONAL
CERCETARE
DEZVOLTARE
2011RO-0001047
20111020
The invention relates to medium voltage cells employed in the
national system for secondary power supply. According to the
invention, the medium voltage cells use a single multifunction
vacuum switching apparatus with three positions (closed, open,
grounded), with solid insulation, actuated by permanent magnets
electromagnets (37, 40) with magnetic locking, with local or remote
control provided by an electronic module (6) performing the
function of switching off for nominal currents, overload currents or
short-circuit currents, separation and ground connection.
NO SI
EP2555360 A1
Three pole insulating
partition for a
medium voltage
switchgear
ABB TECHNOLOGY 2011EP-0176166
20110801
A three pole insulating partition (1) for a medium voltage switchgear
(100), that comprises an insulating body (10) having a planar
structure with a first, upper, surface (11), and a second, lower,
surface (12), said first upper surface (11) being provided with a first
(21), a second (22) and a third (23) seat for a first (31), a second (32),
and a third (33) connection terminal for connection to a bus-bar
system, said second lower surface (12) being provided with a fourth
(24), a fifth (25), and a sixth (26) seat for a fourth (34), a fifth (35) and
a sixth (36) connection terminal for connection with internal
equipment of said medium voltage switchgear (100); a first (41), a
second (42), a third (43), and a fourth (44) insulating parallel walls
being integrally formed on said first upper surface (11) contiguously
to said first (21), second (22) and third (23) seats; a fifth (45), sixth (46),
seventh (47) and eighth (48) insulating parallel walls being integrally
formed on said second lower surface (12) contiguously to said fourth
(24), fifth (25), and sixth (26) seats; said insulating body (10) being
provided with coupling means (50, 60) for coupling with said medium
voltage switchgear (100).
NO SI
103/140
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CN102891439 A
Medium-voltage
side hybrid gas
insulated switchgear
(HGIS) distribution
device for ultrahigh
voltage intelligent
substation
ZHEJIANG ELECTRIC
POWER DESIGN
INSTITUTE
2012CN-0383451
20121010
The invention discloses a medium-voltage side distribution device for
an ultrahigh voltage intelligent substation by employing HGIS
equipment. The medium-voltage side distribution device mainly
comprises HGIS equipment compact type double-row back-to-back
arrangement; the distribution device is formed by a combined
framework and a large-span bus beam framework; road
optimization arrangement is formed in the field of the distribution
device; and a wire outlet bent frame, a wire inlet bent frame and a
bus beam are designed into an integrated combined framework by
employing the dual-bus or dual-bus sectioned wiring type HGIS
distribution device. The distribution device has the characteristics of
reducing the floor area of a substation, particularly an intelligent
substation, saving the steel amount and reducing the total
engineering investment, is suitable for engineering design and
construction of the ultrahigh voltage intelligent substation, and is
particularly suitable for the medium-voltage side by employing the
design of the dual-bus or dual-bus sectioned wiring type ultrahigh
voltage intelligent substation.
NO SI
104/140
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CN202434408 U
Medium-voltage
gas insulation
isolation switch
YIZHENG ELECTRICAL
APPARATUS
2011CN-U562428
20111229
A medium-voltage gas insulation isolation switch relates to a switch
and belongs to a knife type, and a closing position, a separating
position and a grounding position can be realized. A multi-contact-
finger structure is adopted at a separable contact position of the
isolation switch, a contact fingers are contacted with a stationary
contact through a spherical surface, the automatic centering is
realized, and the reliable contact among the stationary contact, the
contact fingers and a contact knife is ensured. A circular ring is
pressed on the contact knife at an inseparable contact position of
the contact knife and a conducting pole, so that the good contact
between the contact knife and the conducting pole can be
ensured. Dark color paint is coated on the part of the contact knife
except for the contact part, so that the radiation is reduced, and the
temperature increase is reduced. All components of the medium-
voltage gas insulation isolation switch respectively adopt a round
corner and have no sharp corner. Therefore, the distribution of an
electric field is uniform, and the insulation level is improved. The
medium-voltage gas insulation isolation switch not only can be
operated by a hand, but also can be electrically operated.
NO SI
DE102011004428 A1
Container for air-
insulated or gas
insulated medium-
voltage switchgear,
has recess aligned
at vertical direction,
where cooling
medium is supplied
into interstice and
flows at recess along
forming wall
SCHNEIDER ELECTRIC
SACHSENWERK
2011DE-10004428
20110218
The container (10) has a pipe (14) provided in a recess (12) that is
opened at free end. An interstice (13) is provided between the pipe
and the recess, and a cooling medium i.e. gas or liquid, is supplied in
the pipe. The cooling medium is supplied into the interstice, and
flows at the recess along a forming wall. The recess is aligned at
vertical direction. The pipe projects into the recess, where cross-
section of the pipe is adapted to cross-section of the recess. The
cooling medium is fed in a closed cooling circuit.
NO SI
105/140
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EP2490309 A2
DE102011004424 B4
Electric switch
assembly, in
particular air-
insulated medium
voltage switching
assembly
SCHNEIDER ELECTRIC
SACHSENWERK
2011DE-10004424
20110218
The electrical switchgear (10) has several switch panels (12) which
are arranged adjacent to each other, and a discharge channel (15)
through which air or gas from the inner side of the panels is derived
to outside. The discharge channel is formed above the panels and
extended over a portion of the panels. The discharge channel is
connected to the inner side of the panels through the openings.
Several fans (19,28,33) are associated with the discharge channel
such that the air or gas flow is generated in the discharge channel.
NO SI
CN202363739 U Intelligent medium
voltage switchgear
HANGZHOU HANDSIN
ELECTRIC
LINAN POWER SUPPLY
BUREAU
2011CN-U443796
20111110
The utility model relates to an intelligent medium voltage switchgear
which can perform real time monitoring of operation status of a
switchgear and possesses the characteristics of accurate data
monitoring and high inspection work efficiency to guarantee safe
and reliable operation of the switchgear. The technical scheme is
that: the intelligent medium voltage switchgear comprises a cabinet
body, copper busbars, a contact box and a breaker installed in the
switchgear and a control system in communication with the network
and is characterized in that the cabinet body also respectively
contains a temperature measurement assembly used for detecting
copper busbar temperatures, a displacement assembly used for
detecting mechanical characteristic of the breaker and a drainage
assembly used for detecting insulating part leakage current; the
temperature measurement assembly, the displacement assembly
and the drainage assembly are respectively connected into the
control system through data lines in order to upload detected data
and furthermore to realize data real-time monitoring of operation
status of the switchgear and seamless joint relative to the system.
NO SI
106/140
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CN102543555 A
Medium voltage
type gas insulation
disconnecting
switch
YIZHENG ELECTRICAL
APPARATUS
2011CN-0450311
20111229
The invention discloses a medium voltage type gas insulation
disconnecting switch and relates to a switch, which belongs to a
switch blade type and can realize three positions of switch-on,
switch-off and earthing. A detachable contact point of the
disconnecting switch is in a multi-contact-finger structure, and a
contact finger and a static contact head are in sphere contact to
realize automatic centering and ensure the contact of the static
contact head, the contact finger and a contact blade reliable. For
the undetachable contact point of the contact blade and a
conducting rod, a circular ring is pressed on the contact blade to
ensure the good contact of the contact blade and the conducting
rod. The contact blade excluding the contact part is coated with
dark color paint to reduce radiation and reduce temperature rise. All
parts of the medium voltage type gas insulation disconnecting
switch are in fillet design and have no closed angles. Electric fields
are distributed uniformly, and the insulation level is improved. The
medium voltage type gas insulation disconnecting switch not only
can be manually operated but also can be electrically operated.
NO SI
107/140
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IN1350/CAL/1998 A
IN201367 B
BUSHING-TYPE POST
INSULATOR FOR A
METAL-CLAD ,AIR-
INSULATED,MEDIUM-
VOLTAGE
SWITCHGEAR
ASSEMBLY
SIEMENS 1997DE-20142542
19970731
The invention relates to a metalclad, air-insulated medium-voltage
switchgear assembly having a number of bushing-type post
insulators (DFS) corresponding to the number of phases, and which
bushing-type post insulators (DPS) have busbar connections (SSA)
and are detachably connected to a post insulator mounting plate
(STB). The bushing-type post insulators (DFS) have cuboid post
insulator external contours (SAK) to which cuboid post insulator
internal contours (SIK) are adjacent, between which post insulator
clamping slots (SKS) having concentric cross-sectional contours are
located, the post insulator internal contours (SIK) containing in the
contact region to the post insulator mounting plates (STB) post
insulator guide contours (SFK) which pass through recesses in the post
insulator mounting plates (STB) and whose longitudinal surfaces (LFL)
facing away from the post insulator external contours (SAK) are
tapered trapezoidally towards the free region. Bushing-type post
insulators are used in conjunction, with medium-voltage switchgear
assemblies for power supply and distribution purposes.
NO NO
CN202150656 U
Medium voltage
metal enclosed
switch cabinet
SHANGHAI DAJIA
ELECTRICAL
APPLIANCES
2011CN-U269394
20110728
The utility model aims to provide a medium voltage metal enclosed
switch cabinet convenient for mounting a cable on-site, comprising
a current transformer 1, copper bars 2, a supporting insulator 3 and a
cable 4; wherein, the current transformer 1 is hoisted below a bus
chamber, the copper bars 2 are connected between the current
transformer 1 and the supporting insulator 3, and the cable is
connected on the copper bars 2. The component arrangement of
the medium voltage metal enclosed switch cabinet of the utility
model enables the cable to be mounted conveniently on-site, and
by using the medium voltage metal enclosed switch cabinet, the
copper bars are saved, and the production cost is reduced.
NO SI
108/140
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EP2346126 A1
WO2011085888 A1
CN102714401 A
Medium voltage air
insulated
switchgear.
ABB TECHNOLOGY
2010EP-0150947
20100118
2010WO-EP69480
20101213
An air insulated medium voltage switchgear which comprises a
casing defining an internal volume for housing at least a circuit
breaker assembly and a bus bar assembly. The circuit breaker
assembly is movable between at least two operative positions and
comprises an insulating base frame supporting: an interruption unit,
an actuator for actuating the opening/closing operation of said
interruption unit and a kinematic chain operatively connecting said
actuator to said interruption unit. The circuit breaker assembly further
comprises, for each phase, at least a first and a second insertion
contacts couplable and uncouplable to corresponding first and
second fixed contacts by moving said circuit breaker assembly.
NO NO
DE202010001066 U1
EP2346127 A2
Medium voltage
switching assembly
GREINER
SCHALTANLAGEN
2010DE-20001066
20100119
The air-insulated medium voltage switchgear has metallic
encapsulated panel (10) with a cabinet-like housing (12) made of
sheet metal, in which partially front-side open spaces separately
assigned to multiple different functional units are formed. The door
leaves (26,28,30) and the housing are provided with circumferential
metallic strips in the border areas confronted in the closing position,
where the metallic strips are forwarding to the door opening in the
housing front surface areas surrounding the housing.
NO NO
DE102010004971 A1
Current transformer
module for high or
medium voltage
switchgear, has
cabinet with
common gas space
for receiving
isolation gas of
nominal guards and
single phase region
for locating current
transformers
ABB TECHNOLOGY 2010DE-10004971
20100118
The transformer module has a cabinet (10) that is provided with
terminal groups (20,30,40) having gas insulated nominal guards (15).
The nominal guard apertures of the terminal groups are diagonally
arranged with respect to each other. A group of current transformers
(60) is provided in a single phase region of the cabinet and a
common gas space for receiving isolation gas of the guards.
NO NO
109/140
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WO2011045042 A1
CA2776825 A1
AU2010306081 A1
CN102598446 A
KR20120091076 A
EP2312709 B1
ES2399949 T3
Gas insulated
switchgear ABB TECHNOLOGY
2009EP-0012903
20091013
2010WO-EP06259
20101013
The invention relates to gas insulated switchgear for medium or high
voltage use in case of at least two switchgear panels arranged
beside (together), with a pressure relief in the housing of the
switchgear. In order to generate a constructive result by low cost but
high functional efficiency, which reduces occurring plasma very
quick and efficient, a pressure relief (4) is arranged at the rear side of
the housing or conmpartment and it corresponds with guiding
means (5), which guide in case of a escaping plasma (3), the
plasma at first in direction to the floor, from where it will be splitted or
distributed by splitting or distributing means (6) over more than one
panel rear side.
NO NO
EP2312710 A1
WO2011045040 A1
CA2776823 A1
AU2010306079 A1
CN102576989 A
KR20120091080 A
Three-phase
gasinsulated
medium voltage
switching device
ABB TECHNOLOGY
2009EP-0012901
20091013
2010WO-EP06257
20101013
The invention relates to a three-phase gasinsulated medium voltage
switching device with a disconnecting device between medium
voltage levels and voltage transformers with disconnector contacts
which are arranged on a rotatable shaft, in that way, that by a
partly rotation of the shaft, the disconnector contacts switch
connected voltage transformers between medium voltage level and
ground level. The shaft is passing through the side wall of a gastight
compartment and/or a housing.
NO NO
EP2312708 A1
WO2011045041 A1
CA2776824 A1
AU2010306080 A1
CN102576988 A
KR20120091079 A
Medium voltage
switchgear ABB TECHNOLOGY
2009EP-0012900
20091013
2010WO-EP06258
20101013
The invention relates to a medium voltage switchgear, e.g. gas
insulated switchgear, which consist of an arrangement of several
switching device panels, like feeder panel, coupler panel and riser
panel, each with a separate compartment and further
interconnecting means between the compartments. In order to unify
the measure system in a comfortable way, for easy construction and
assembly, the invention is, that each panel width is dimensioned to a
fix base measure x or integer multiples n*x of it.
NO NO
110/140
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WO2011045045 A3
DE102009049341 B4
DE212010000165 U1
CN202906276 U
GAS-INSULATED
MEDIUM-VOLTAGE
SWITCHGEAR
HAVING BUSBAR
ARRANGEMENT
ABB TECHNOLOGY
2009DE-10049341
20091014
2010DE-21000165
20101013
2010WO-EP06262
20101013
The invention relates to gas-insulated medium-voltage switchgear
with a busbar arrangement, comprising a plurality of switch panels
wherein T-connection elements provide an electric connection
between the busbar and the switch panel, according to the
preamble of patent claim 1. In order to achieve here a more
efficient use of the material in switchgear having a busbar
arrangement, it is proposed according to the invention to adapt the
T-connection elements in the area of the exit to the switch panel in
the line cross-section only to the current capacity of the respective
switch panel.
NO NO
US2010258532 A1
MX2010003779 A
US8101881 B2
CA2699189 C
ARC RESISTANT
SWITCHGEAR
VERTICAL EXHAUST
SYSTEM
SCHNEIDER ELECTRIC
SQUARE D
2009US-0420337
20090408
An exhaust system for exhausting gases and molten debris caused
by an electric arc within a switchgear. The exhaust system includes a
switchgear having lower and upper compartments and an exhaust
unit externally mounted to the switchgear. A wall panel of the
switchgear includes blow out panels coinciding with openings in the
lower compartment and corresponding ventilation flaps in a top
surface of the exhaust unit to exhaust gas from the lower
compartment out the blow out panels in a vertical direction, exiting
through the flaps. The upper compartment includes ventilation flaps
for exhausting gas in a vertical direction directly through the flaps
and optionally through side-mounted blow out panels that
communicate with the vertical vent path to the flaps in the top of
the exhaust unit. A bus compartment in the exhaust unit includes a
vent path to flaps in the top of the exhaust unit for exhausting gas
produced by bus arcing.
SI -
111/140
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EP2178176 A1
CN101728094 A
IN2365/MUM/2009 A
FR2937190 B1
Method for
establishing an
electrical
connection
between two
contact blocks,
associated
connection device
and high- or
medium-voltage
device
AREVA T&D 2008FR-0057001
20081015
The method involves interlocking an end (401) of a rigid bar (40) of a
telescopic assembly i.e. telescopic compression assembly, in one of
electrical contact blocks (2, 3), where outside length of the
telescopic assembly in a deployed position is higher than distance
between the contact blocks. The telescopic assembly is retracted,
and the retracted telescopic assembly is positioned along an axis (X)
of the contact blocks. The retracted telescopic assembly is deployed
in a manner to cause interlocking of an end (411) of a connector
(41) in the other contact block. An independent claim is also
included for an electrical connection device for connecting
electrical contact blocks.
NO NO
EP2139016 A1
WO2009156133 A1
EP2294593 A1
KR20110041439 A
CN102077311 A
US2011120976 A1
JP2011525686 A
RU2011102387 A
US8350174 B2
RU2477901 C2
Pole part of a
medium-voltage or
high-voltage
switchgear
assembly, and
method for its
production
ABB TECHNOLOGY
ABB TEKNOLODZHI
2008EP-0011391
20080624
2009EP-0768982
20090624
2009WO-EP04541
20090624
The invention relates to a low-voltage, medium-voltage or high-
voltage switchgear assembly as claimed in the preamble of patent
claim 1, 9 and 10. In order to ensure in this case that heat that is
created is dissipated better to the exterior for convection, the
invention in this case proposes that a thermally conductive heat
transmission element in the form of a cylindrical casing is provided
between the vacuum interrupter chamber, a contact holder and
the encapsulation casing, the inner surface of which heat
transmission element rests on the vacuum interrupter chamber and
the contact holder, and the outer surface of which heat transmission
element rests on the encapsulation casing inner surface.
Furthermore, a heat transmitter is proposed which can be produced
from a thermally conductive plastic using the injection-molding or
molding-compound production process. This can then be
connected to the pole part through openings. A further option is to
fit these heat transmitters before the encapsulation of an assembly
with an encapsulation compound, and then to also cast them in.
NO NO
112/140
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EP2071687 A1
WO2009074256 A1
Medium-voltage or
high-voltage
switchgear assembly
ABB TECHNOLOGY 2007EP-0023853
20071210
Medium-voltage or high-voltage switchgear assembly according to
the preamble of patent claim 1. In order in this case to achieve the
situation whereby a housing can be very largely dispensed with, and,
moreover, a better ability to prefabricate the switchgear assembly
arises, it is proposed according to the invention that said
components of the switchgear assembly are additionally provided
with an electrically conductive surface coating in their entirety or
only on their surfaces provided with insulation material, and these
respective coatings of the respective components in a switchgear
assembly are grounded to the same electrical ground potential.
NO NO
WO2009050154 A1
FR2922354 B1
EP2201588 A1
IN0593/MUMNP/2010
US2010270266 A1
CN101821827 B
COMPACT
COMMON-
TRANSMISSION
CIRCUIT BREAKER
HAVING TWO
ALIGNED CUT-OFF
CHAMBERS
ALSTOM
TECHNOLOGY
AREVA T&D
2007FR-0058322
20071015
2008WO-EP63768
20081014
The invention relates to a high or very-high voltage circuit breaker
comprising, per phase, at least two aligned cut-off chambers, each
chamber comprising a pair of main contacts, a pair of contacts
each fastened to one of the main contacts and a nozzle for blowing
the hot gases resulting from the cut-off, the pairs of contacts being
partly of complimentary male and female shapes and each
comprising at least one moving contact, the nozzle being fastened
to the moving main contact and the moving arc contact.
According to the invention, the movement between the moving
contacts of the first chamber (Ca) and those of the second
chamber (Cb) is transmitted simultaneously by a transmission
assembly (4, 40, 41) which is fastened directly, on the one hand, to
the moving main contact (7a) of the first chamber and, on the other
hand, to the moving arc contact (1b) of the second chamber, the
transmission assembly being contained inside the two cut-off
chambers.
NO NO
113/140
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US2009015190 A1
JP2009017774 A
CN101355331 A
DE102007030344 B4
RU2008124959 A
RU2382459 C1
EP2009973 A3
US7948203 B2
Device for
controlling a soft
start or stop for AC
motors, so-called
soft starters
ANDREAS SIEMES
SIEMES ANDREAS
ZIMES ANDREAS
2007DE-10030344
20070629
The device has a three phase power block (4) comprising associated
power electronics and a contactor (6). The block is provided with
circuit cell walls on frames and fastening of pin isolators as a unit
according to front light, and is not attached to rear side or a side
wall of a switch cabinet (2). A disconnecting switch (9) attached to
the switch cabinet is detachably connected with a busbar
connection (10) by a pluggable contact coupling (10a) during
insertion.
NO NO
DE202007008579 U1
ES1068242 Y
CN201252341 Y
Air-insulating cell for
a medium voltage
contactor switch
SIEMENS 2007DE-20008579
20070615
The utility model relates to a power distributing cabinet used for the
air insulation of a medium voltage protection switch of medium
voltage power distributing equipment capable of being arranged in
sequence. The power distributing cabinet comprises a vacuum
protection switch (3) in the frame (2), a fuse combination (7), voltage
transformers (5 and 12) and a bus connecting end and cable
connecting ends (6 and 13). The power distributing cabinet is
characterized in that the vacuum protection switch (3) is fixedly
installed on the side surface of the frame (2) under the condition that
the function is not disconnected, a first voltage or current transformer
(5) and the bus connecting end (6) are connected to the upper part
of the vacuum protection switch (3) along the vertical direction, and
an HH fuse (7), a cable connecting end (13) and a second voltage
or current transformer (12) are connected to the lower part of the
vacuum protection switch (3) along the vertical direction.
NO NO
114/140
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WO2008067943 A1
DE102006058270 A1
EP2097958 A1
KR20090106388 A
CN101595610 A
GAS-INSULATED
SWITCHGEAR
ASSEMBLY
ABB TECHNOLOGY
2006DE-10058270
20061208
2007WO-EP10344
20071129
The invention describes an electrical high-voltage or medium-
voltage switchgear assembly (10), with circuit breakers, drives, switch
disconnectors and the like, which can be assembled possibly to form
switching devices or switching models which can be prefabricated
in order to form a switchgear assembly and are preassembled
and/or tested in the factory. A specific, unique address is associated
with each switching device module and/or switching device and/or
switchgear assembly (10), which address can be or is logically linked
to its associated data which are specific to the switching device
module and/or the switching device and/or the switchgear
assembly and are contained in a data detection and data
processing device (12).
NO NO
WO2007137977 A1
DE102006025650 A1
CA2653677 A1
EP2022068 A1
US2009141430 A1
CN201298491 Y
DE202006020757 U1
GAS-INSULATED
SWITCHPANEL OF A
MEDIUM-VOLTAGE
SWITCHGEAR
ASSEMBLY
SIEMENS
2006DE-10025650
20060529
2006DE-20020757
20060529
2007WO-EP55003
20070523
A gas-insulated switchpanel of a medium-voltage switchgear
assembly includes busbar connection and cable outlet regions with
a manually actuable switch arrangement having a contact position,
with a conductive connection from the busbar connection region to
the cable outlet region via the switch arrangement and a vacuum
contactor, driven by a magnet, and a grounding position, in which
the cable outlet region and the vacuum contactor are grounded by
the switch arrangement. The vacuum contactor switches a current
between the busbar connection region and the cable outlet region
in the contact position and the switchpanel has a relatively high
current-carrying capacity. The switch arrangement grounding and
isolatinges switch mechanically coupled to one another and
actuable by a single drive. In the contact position, the isolating
switch forms the conductive connection and, in the grounding
position, the grounding switch connects the vacuum contactor and
the cable outlet region with a grounding contact.
NO NO
115/140
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DE202006006711 U1
TR200702438 U
Air insulated middle
voltage switchgear
has outer insulated
walls in cable outlet
region and
crossways phase
separating walls on
holders extending
between the outer
walls
SIEMENS 2006DE-20006711
20060420
An air-insulated middle voltage switch gear (1) comprises two
parallel insulated outer walls (12,13) in the cable outlet region (8)
fixed to the switchgear by holders (14,15). There are crossways phase
separation walls (10,11) on insulated holders (16) that extend
between the insulated walls.
NO NO
DE102006019356 A1
WO2007122109 A1
CA2650950 A1
MX2008013081 A
EP2008348 A1
AIR-INSULATED
MEDIUM-VOLTAGE
SWITCHGEAR
ASSEMBLY
SIEMENS
2006DE-10019356
20060420
2007WO-EP53544
20070412
In order to design an air-insulated medium-voltage switchgear
assembly with a busbar area and at least one further functional
area, which is separated from the busbar area by means of a wall,
with a switch module, wherein busbar conductors extend out of the
busbar area through the wall into the further functional area, which
switchgear assembly has a cost-effective design, the invention
proposes that the wall is formed from an insulating plate with
through-openings for each busbar conductor and the busbar
conductors are fixed at the through-openings.
SI -
DE202006005093 U1
Switching device for
medium voltage
power grid, has
three-phase cable
connections, and
circuit breaker for
each cable
connections and for
disconnecting and
earthing one of
three three-phase
cable connections
DRIESCHER
SPEZIALFAB FRITZ
2006DE-20005093
20060328
The device has three-phase cable connections (1, 2, 7), where three
phases are connected to a three pole bus bar in unencumbered
condition. A circuit breaker is provided for each cable connection
for disconnects and earthing one of the cable connections. A
grounding wire is coupled to a phase wire of the cable connection
or transformer connection by the circuit breaker in disconnected
condition.
NO NO
116/140
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DE202005020937 U1
WO2007023113 A1
NO20081261 A
MX2008002584 A
EP1917671 A1
KR20080047556 A
CN101243530 A
US2008217153 A1
IN0655/KOLNP/2008 A
JP2009505627 A
RU2008110920 A
INSULATING ELEMENT
FOR A MEDIUM-
VOLTAGE
SWITCHGEAR
SIEMENS
2005DE-10040298
20050822
2005DE-20020937
20050822
2006WO-EP65333
20060816
An insulating element for a medium-voltage switchgear has a
terminal at the busbar end and an outgoing cable. A circuit-breaker
is embedded in the insulating element. The insulating element
supports a first contact point that is connected to the circuit-breaker
and is used as a bearing point for a movable switching contact of a
disconnector, and an additional contact point for the movable
switching contact. A favorable structure for producing medium-
voltage switchgears in general for primary and secondary power
supply systems while reducing expenses, the additional contact
point is also configured as a bearing point for the movable switching
contact, the movable switching contact is alternatively mounted on
the additional contact point rather than on the first contact point,
and the additional contact point is alternatively connected to the
outgoing cable rather than to the terminal at the busbar end.
SI -
CN2716999 Y
Solid sealing type
terminal of medium
voltage vacuum
circuit breaker
JIANGSU DONG
YUAN ELECTRICAL
2004CN-U108725
20041109
The utility model discloses a solid sealing type terminal of medium
voltage vacuum circuit breaker, comprising a vacuum arc-
extinguishing chamber, an upper conductive terminal and a lower
conductive terminal. A sealing insulating housing is provided outside
the vacuum arc-extinguishing chamber, the upper conductive
terminal and the lower conductive terminal. The solid sealing type
terminal of medium voltage vacuum circuit breaker has the
advantages of reasonable structure, long service life and good using
effects. Double skirt edges of an inner skirt edge and an outer skirt
edge are provided at the mounting end of the insulating housing, so
that the operating reliability under various operating environments
can be increased.
NO NO
117/140
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WO2006000443 A1
AU2005256514 A1
DE102005029600 A1
AU2005256514 B2
US2009296320 A1
CA2570772 C
CN1977432 B
CN102420398 A
US8462486 B2
GAS-INSULATED
MEDIUM-VOLTAGE
SWITCHGEAR
ABB TECHNOLOGY
2004DE-10031090
20040628
2005DE-10029600
20050623
2005WO-EP06892
20050627
The invention relates to a gas-insulated medium-voltage switchgear
comprising circuit breakers, disconnectors, and earth electrodes
according to the preamble of patent claim 1. The aim of the
invention is to fulfil the described market-specific requirements and
to improve one such gas-insulated medium-voltage switchgear. To
this end, the circuit breaker region is measured in such a way that
the circuit breakers, and the output-side disconnectors and earth
electrodes are all arranged therein.
NO NO
WO2005122352 A1
AU2005253220 A1
CN1965453 A
DE112005001286 A5
DE202005021334 U1
AU2005253220 B2
US2009015991 A1
CA2567781 C
CN103138199 A
US2013163165 A1
GAS-INSULATED
SWITCHGEAR
COMPRISING AN
INSPECTION GLASS
FOR OPTICALLY
DETECTING THE
SWITCHING
POSITION OF THE
SWITCHING
CONTACTS
ABB TECHNOLOGY
2004DE-10028275
20040609
2005WO-EP06079
20050607
2008US-0628995
20080730
2013US-13770686
20130219
The invention relates to a gas-insulated switchgear, particularly a
gas-insulated medium-voltage switchgear, according to claim 1. In
order to satisfy additional safety requirements also with position 2
and 3 disconnectors in gas-insulated switchgears, an inspection glass
(9) is inserted/mounted in the housing (10) such that the positions of
the switching contact elements can be seen directly or indirectly via
optical means from outside the housing.
NO NO
118/140
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US2005063107 A1
WO2005029525 A1
CA2538557 A1
CN1856855 A
US7239490 B2
EP1665314 B1
ES2371915 T3
MEDIUM VOLTAGE
VACUUM CIRCUIT
INTERRUPTER
EATON
2003US-0668074
20030922
2004WO-IB03081
20040922
An encapsulated medium voltage vacuum circuit interrupter
includes a line terminal, a load terminal, a vacuum interrupter, an
operating mechanism and an elongated, insulated, generally
cylindrical encapsulating housing. The vacuum interrupter includes a
vacuum envelope containing a fixed contact assembly and a
movable contact assembly movable between a closed circuit
position in electrical communication with the fixed contact assembly
and an open circuit position spaced apart from the fixed contact
assembly. The fixed contact assembly is electrically interconnected
with the line terminal. A flexible conductor electrically connects the
movable contact assembly with the load terminal. The operating
mechanism moves the movable contact assembly between the
closed circuit position and the open circuit position. The housing
includes a first end supporting the line terminal and an opposite
second end supporting the load terminal. The housing encloses the
vacuum interrupter, the flexible conductor and the operating
mechanism.
NO NO
JP2005065496 A
US2005063154 A1
RU2004124622 A
US7272003 B2
RU2328798 C2
CN1581618 B
EP1507323 B1
Enclosed switchgear
with heat-dissipating
elements
ABB RESEARCH
CENTER
2003EP-0405592
20030813
The system section has an electrical operating arrangement (20-23)
for at least three phases (R,S,T) arranged in capsules (3) with capsule
covers (3a) and side walls (30b) thermally coupling adjacent
capsules. At least two intermediate plates are arranged between
two capsule side walls for taking heat from at least one side wall and
giving off heat to a vertically rising air flow (9). At least one of the
plates is a flow deflecting steel plate (5,50) with at least one angled
plate (50a) in an air outlet region near the capsule cover for guiding
at least one partial air flow towards at least one cover. -
Independent claims are also included for the following: - (a) a
radiation plate for an inventive system section - (b) and an electrical
system with an inventive system section.
NO NO
119/140
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DE10313723 B3
PL365354 A1
CN1525511 A
CN1317726 C
HK1069257 A1
EP1450458 B1
AT470973 T
DE502004011255 D1
ES2345547 T3
Absorbing-element
assembly for
switchgear
FELTEN & GUILLEAUME
CARLSWERK
ORMAZABAL
ANLAGENTECHNIK
ORMAZABAL
EQUIPMENT
TECHNOLOGY
2003DE-1007495
20030221
2003DE-1013723
20030327
The module has the hot gas directed to at least one flow path
containing at least one monolithic ceramic absorber element
(10,10',10'') packed into a flow chamber (40) for the hot gas and
provided with channels (11) for passage of the hot gas having a
cross-section of between 2 and 10 mm and extending in the main
flow direction.
NO NO
DE10246598 A1
CA2501159 A1
AU2003258617 A1
WO2004034534 A3
RU2005109395 A
EP1547218 B1
AT317165 T
CN1742415 A
DE50302356 D1
PT1547218 E
US2006166538 A1
ES2258238 T3
RU2310261 C2
CN100581016 C
HK1087540 A1
US7775818 B2
BUS BAR
CONNECTION FOR A
GAS-INSULATED
SWITCHBOARD
SYSTEM
ALSTOM
AREVA T&D
2002DE-1046598
20021005
2003DE-5002356
20030816
2003WO-EP09080
20030816
A busbar coupling (SSK) for gas-insulated switchgear with at least
two switch-bays (F1,F2) filled with insulating gas (IG) and
interconnected by at least one electrical coupling element (KS)
comprising the busbar coupling (SSK). The busbar coupling (SSK) has
a bellows (FB) mounted between the switch bays (F1,F2) and filled
with the insulating gas (IG) and enclosing in gas-tight fashion the
electrical coupling element (KS) of the busbar coupling (SSK). An
Independent claim is included for gas-insulated switchgear with at
least two switch-bays.
NO NO
120/140
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DE10246557 A1
AU2003273798 A1
WO2004034535 A3
RU2005109396 A
EP1547219 B1
AT317166 T
CN1736010 A
DE50302351 D1
PT1547219 E
US2006125464 A1
ES2258230 T3
RU2316094 C2
US7336083 B2
CN100379109 C
HK1087541 A1
CA2501143 C
CONNECTING
SLEEVE FOR A BUS
BAR CONNECTION
IN A GAS-INSULATED
SWITCHBOARD
SYSTEM
ALSTOM
AREVA T&D
2002DE-1046557
20021005
2003DE-5002351
20030816
2003WO-EP09081
20030816
A connecting sleeve generally used for a bus bar connection is
produced from an insulating elastic material, often an elastomer
material, having insulating properties which are deteriorated by
partial discharges and decrease over the operating time of the
switchboard system. According to the invention, so-called partial
discharge measuring methods must be carried out, inter alia also in
the UHF range (UHF: ultra high frequency), in order to identify
damaging effects on the insulating material in time. For the reliable
and simple detection of the measuring signals, the connecting
sleeve (M) has an outer, electroconductive surface (OA) which is
earthed, and an inner, electroconductive surface (OI) to which the
voltage potential of the bus bar (S) is applied, in addition to a
coupling electrode (KE) which is integrated into the insulating
material (I).
NO NO
DE10214203 B4
Single-phase
electrical
connection module,
e.g. for medium
voltage switching
system, has
electrical
conducting element
in one piece and of
cross shape with
outer solid state
insulating coating
SIEMENS 2002DE-1014203
20020327
The connection module (1) has an electrical conducting element (2)
and an outer solid state insulating coating (3) for the conducting
element, where the end surfaces of (4,5) the conducting element
are fee of insulating coating. The electrical conducting element is
made in one piece and of cross shape. The cold state insulating
coating can be in the form of cast insulation material.
NO NO
121/140
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DE10145900 A1
EP1294064 A3
Electrical
connection
between gas
insulated switchgear
cells
ALSTOM 2001DE-1045900
20010918
The device has at least one thermoplastic leadthrough (1,2)
protruding from the gas container side wall (S) of the relevant switch
field or module with an end surface and an electrical contact (5,5'),
an annular elastic insulation part (3) between the opposing surfaces
of the leadthroughs for electrically sealing the contact connection
and a pressure ring (4) that presses the leadthrough ends against the
insulating part. Independent claims are also included for the
following: a gas-isolated switch field and a switching system.
NO NO
DE10119333 C1
WO02087042 A1
KR20030013376 A
NO20026090 A
CN1457540 A
CN1252888 C
EP1380083 B1
AT324692 T
DE50206572 D1
PT1380083 E
HK1060658 A1
ES2262790 T3
ELECTRIC
SWITCHING SYSTEM
FELTEN & GUILLEAUME
CARLSWERK
FELTEN GUILLEAUME
ORMAZABAL
ANLAGENTECHNIK
2001DE-1019333
20010420
2002DE-5006572
20020226
2002WO-EP02009
20020226
The invention relates to a bus coupling by adjacent walls (1) of two
adjacent functional units of a switching system. The aim of the
invention is to provide an improved coupling which can be easily
secured to the walls of the functional units and which ensures secure
functional unit control in a compact form. Means (13) for securing to
the respective functional unit walls (1) are integrated into the
insulating bodies (8). A sealing body (18) which can be used for the
coupling or a closing body (18') can be inserted into the insulating
body (8). The insulating body (8) is provided with a sealing gap (32)
into which the edge (18.2) of the sealing body (18) or the closing
body (18') which is embodied in a cupular form can be pressed.
NO NO
122/140
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DE10056646 C1
WO200239557 A1
EP1332537 A1
CN1473383 A
US2004052026 A1
CN1230958 C
DEVICE FOR
RECEIVING
INTERRUPTERS OF
CIRCUIT BREAKER
SYSTEMS
SIEMENS
2000DE-1056646
20001109
2001WO-DE04039
20011019
The invention relates to a device for receiving interrupters (SRE) of
circuit breaker systems, especially vacuum interrupters for medium-
voltage switchgears, comprising a shell-shaped insulating housing
(SIG) which envelopes the interrupters (SRE) up to their front side.
Said insulating housing (SIG) is provided with rear fixing links for fixing
the position. The shell-shaped insulating housing (SIG) is made up of a
combination of thin-walled insulating struts (IST), thick-walled bearing
struts (TRS) and a support device (SER) which is provided in the rear
area. Said housing (SIG) is configured as a single piece and in the
top and bottom end areas, is provided with an enveloping contour
(UKo, UKu) opening upwards and downwards, respectively. Said
contours are configured in such a way that a top and a bottom
cooling and fixing fitting (Kat, KAu) of the interrupters (SRE) is
received and the interrupters are fixed at the level of the effect of
the axial force (EAK) on the shell-shaped insulating housing (SIG).
Receiving devices of this type for interrupters are used in conjunction
with TRS circuit breaker systems for supplying and distributing energy.
NO NO
WO200215352 A1
DE10041315 A1
CN1339857 A
KR20020047221 A
IL148836 D0
CN1178353 C
KR100482903 B1
IN0470/KOLNP/2002 A
IN203839 B
EP1310026 B1
DE50114762 D1
GAS-INSULATED
SWITCHGEAR
COMPRISING A
THREE-PHASE BUS
BAR
SIEMENS
2000DE-1041315
20000814
2000DE-10413153
20000814
2001WO-DE02985
20010806
The invention relates to a gas-insulated switchgear comprising a
three-phase bus bar, especially of the medium-voltage type, and
further comprising a number of circuit-breakers that are controlled
via disconnectors and correspond to the number of poles to be
switched, and field wiring and cable terminals. Every bus bar is
housed in a hermetically closed bus bar module (SM1,2) within a bus
bar compartment (SR) of the switchgear and the bus bars in the bus
bar module (SM1,2) are disposed horizontally and vertically in the
exterior area of the same. The bus bar module (SM1,2) can be
connected to threaded couplings (SK ) for field expansion and every
circuit breaker is housed within the switchgear in a circuit breaker
module (LS ). Every bus bar module (SM1,2) is linked with the
corresponding circuit breaker module (LS ) by means of a module
coupling (MK ) in an electroconducting manner.
NO NO
123/140
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CN1338799 A
CN1182640 C
DE10041997 B4
Metal encapsulated
gas-insulated switch
gear e.g. for
medium-voltage
(MV) technology,
has device for
detecting gas
pressure within gas
space
SIEMENS 2000DE-1041997
20000810
A metal encapsulated gas-insulated switch gear includes a device
for detecting the gas-density within a gas space (GR). A switch-gear
has bellows (FB) with varying length extension (LA) arranged inside
the gas-space (GR) and is controlled by pressure variations. The
variable length extension (LA) of the bellows (FB) can be transferred
to at least one sensor device (S-P1,P2) arranged outside the gas-
space, and the sensor device directly generates a gas-state
detection system (GZ) at a critical gas density.
NO NO
ITMI20000570 A1
WO200169742 A1
AU5619801 A
EP1281223 A1
IT1316811 B1
GAS-INSULATED
SWITCHGEAR
APPARATUS
ABB RICERCA
ABB SERVICE
2000IT-MI00570
20000317
2001WO-EP02583
20010305
A gas-insulated switchgear apparatus, whose particularlity consists of
the fact that it comprises: a casing, which accomodates at least a
first connection terminal and a second connection terminal; an
interruption unit, which is electrically connected to the first terminal
and comprises an interruption chamber which accomodates a fixed
contact and a movable contact which is operatively controlled by
first actuation means; a disconnection unit, which comprises at least
one first fixed contact which is electrically connected to the
interruption unit, a second fixed contact which is connected to the
second terminal, a third fixed contact at ground voltage, and at
least one first movable contact which can be coupled to at least
one of the fixed contacts, the first movable contact being fixed to
second rotating actuation means and rotating rigidly with them, the
rotation axis of the second actuation means being substantially
perpendicular to the longitudinal axis of the interruption chamber;
and in that at least one of the first and second actuation means
comprise a motor with position control.
NO NO
124/140
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DE10017585 A1
Metal-encapsulated
gas-insulated MV
switchgear device
assembled from
switching field units
selected in
dependence on
application
DRIESCHER
SPEZIALFAB FRITZ
2000DE-1013401
20000317
2000DE-1017585
20000408
The MV switchgear device (1) has at least 2 units for housing
respective switching fields (2,3), selected in dependence on the
application of the switchgear device and welded or soldered
together. The switching fields can be combined with a fuse field (4),
with a common insulation gas filling used for all fields.
NO NO
WO200141273 A1
BR0015934 A
MXPA02005347 A
AR026636 A1
CN1402899 A
CN1237680 C
DE19958782 B4
BUSHING INSULATOR
AND BUSHING-TYPE
CURRENT
TRANSFORMER FOR
METAL-
ENCAPSULATED, AIR-
INSULATED MEDIUM
VOLTAGE
SWITCHGEARS
SIEMENS
1999DE-1058782
19991130
2000WO-DE03992
20001107
The bushing insulator (DFS) and the bushing-type current transformer
(DSW) have a rectangular bushing hole (DFO) that is staggered
outward forming a stair step pattern, to which a receiving part (AFT)
is connected, said receiving part being disposed crosswise in relation
to said hole and being preferably fitted with a round cross sectional
structure having a conductor terminal (LTA) pointing outward to the
top side. The conductor terminal is connected in an electrically
conductive manner to a counter-contact (GKT) by means of a
primary conductor (PLT), whereby the bushing hole (DFO) and the
receiving part (AFT) form part of a common cast resin body (GHK)
and said cast resin body (GHK) has an external control electrode
(SEA) molded into the cast resin surrounding the latter in a U-shaped
manner in the front area of the bushing hole (DFO). The cast resin
body is provided with an inner control electrode (SEI) that is molded
into the cast resin and shields the bushing hole (DFO) in the form of a
plate in the boundary area between the bushing hole (DFO) and the
receiving part (AFT).
SI -
125/140
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DE19955218 A1
Mobile
encapsulated gas
insulated medium
voltage switchgear,
comprises inner
cone fitted on outer
cone of lead-in, and
cable shoe is fixable
at free end of lead-
in
ABB 1999DE-1055218
19991117
The switchgear has at least a lead-in with an outer cone at which at
least one cable is connectable. The voltage switching system is
designed so that an inner cone (29) can be fitted on the outer cone
(13) of the lead in (12), with the interpositioning of a silicon layer (14),
which is formed on, at a wall (26) of an insulating housing (20). In
addition respectively a cable shoe for the at least one cable, is
fixable at the free end of the lead in.
NO NO
DE19940634 A1
Electrical switchgear
especially medium
voltage (MV)
switchgear, has
switchgear
components such as
power switch,
earthing switch,
disconnector and
busbars positioned
in metal switchgear
cabinet
ABB 1999DE-1040634
19990826
Electrical switchgear housing (10) has individual first components
enclosed in a hard insulating material, and further components,
which can be connected to the first component, enclosed in an
elastic insulating material, and in the switchgear, the components
are then simply modularly joined to one another. The points of
connection of the first components to the other components are
designed as inner- or outer-conical connections with conical joints,
which are clamped to one another so that the joints are electrically
tight.
NO NO
CN1284774 A
CN1178352 C
HK1034369 A1
DE19937072 B4
Medium-voltage
switch SIEMENS
1999DE-1037072
19990804
A solid-insulation type sheathed connecting element for gas-
insulated switchgear and particularly for making an electrical
connection between components of the switchgear, has an
insulated contact bushing between gas-insulated chambers. The
solid-insulation type sheathing (FU) of the connecting element (VE) is
formed by a heat-conducting synthetic resin compound, and makes
heat-conducting connection with a number of cooling body
elements (KK...) matched to the its outer contour.
NO NO
126/140
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DE19935658 A1
Heat-extraction
device for gas-
insulated metal-clad
switch- gear, has
ceramic insulating
body positioned
between two
conductor sections
jutting out in either
direction from resin
bushing
ABB 1999DE-1035658
19990729
Heat generated in metal-enclosed switchgear by the heated arising
from the electrical resistance of the conductors, leading to limitation
of the rated current carrying capacity of the electrical switchgear, is
dissipated by fixing a synthetic resin bushing body (10), with a
insulating body (14) made of an aluminium-oxide type ceramic
placed between two conductor sections (12,13), on the
encapsulation wall. This ceramic material has good thermal
conductivity. A heat-sink (18) is provided on an externally protruding
end (13) of the inner conductor section which lies outside the
encapsulation.
NO NO
DE29912027 U1
CN1281278 A
CN1197215 C
HK1032856 A1
Container for
Switchgears, in
particular for gas-
insulating medium-
voltage switchgears
SIEMENS 1999DE-2012027
19990702
A container for distribution equipment is used for accepting
distribution equipment, bus bar, leads or the like, wherein the
distribution equipment comprises at least a distribution board. In
order to improve the heat removal of the distribution equipment and
to improve the reliability, the invention proposed that the container is
composed in an unit fashion of two sidewalls, a rear wall and a
bottom wall, having the same wall structure, wherein the wall
structure is composed of a flat outer wall(AW)and a flat inner
wall(IW)paralleled to the outer wall, and the inner wall and the out
wall are fixed connected to each other by means of connection
lath(VS)which is configured between the inner wall and the outer
wall to allow the forming of convection air streams with
approximately equal strength in all of the planes in the gaps of the
wall structure.
NO NO
FR2794296 B1
EP1059715 B1
AT244944 T
DE60003758 D1
Partioned Air
insulated medium
voltage switchgear
with overpressure
flaps
ALSTOM 1999FR-0006786
19990528
The isolation chamber assembly comprises of a cable compartment
(1) and an additional escape chamber (2). The two chambers are in
communication via a gate assembly (3) that closes the chambers.
The gate can be opened to enable built gases to escape into the
second chamber. A second gate assembly (8) enables the second
chamber to act as an escape chamber of the built up gases.
NO NO
127/140
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EP1030334 A1
US6232571 B1
MXPA00001499 A
FR2789798 B1
CA2298173 C
Medium voltage
load break switch
module and
corresponding
power station
ALSTOM
AREVA T&D
1999FR-0001779
19990215
The circuit breaker and phase selector have a screened outer casing
(3) with an inner placed circuit breaker and phase selector (1) and
upper circuit connectors (4C). The circuit breaker is carried on a
carriage section (8) on a base (9). Each pole is connected across
two poles (4A) of the same modulation pole using complementary
connecting pieces (2B). The connecting piece can move to a
disconnected vertical position (2).
SI -
DE19856772 A1
WO200033434 A1
EP1142075 A1
RU2001117843 A
SWITCHING
STATIONS
COMPRISING
POWER SWITCHING
DEVICES
SIEMENS
1998DE-1056772
19981130
1999WO-DE03764
19991124
The invention relates to switching stations comprising power
switching devices, especially air-insulated medium-voltage switching
stations, comprising busbars and cable branches for supplying and
distributing power. The power switching devices (LE) each contain a
contact unit (KE) and a switching tube (SR), whereby the contact
units (KE), inside the power switching devices (LE), can be
connected with earth potential bars (ES) according to need, and
the contact units (KE), inside the switching stations (SA), can be
connected to the busbars (SS) and to the cable branches (KA)
according to need.
NO NO
DE19850207 A1
AU1547400 A
WO200025335 A3
EP1123554 B1
DE59901277 D1
US6395990 B1
AU752482 B2
INSULATING
CARRIERS FOR
VACUUM CIRCUIT
BREAKERS
SIEMENS
1998DE-1050207
19981023
1999DE-5001277
19991012
1999WO-DE03307
19991012
The insulating bases are provided by pole shells for accommodation
of vacuum contactors, with the pole shells each having an enclosure
profile which is curved inward and, for detachable connection to
the vacuum contactors, each being equipped with vacuum
contactor attachment webs which are arranged as mirror images of
one another. For detachable connection to the switchgear
assemblies, the pole shells are each provided with a pole shell
attachment web and, on the inside, have a number of
circumferential transverse ribs which run approximately at right
angles to the longitudinal axes of the pole shells, and the number of
which is matched to the voltage conditions in the vacuum
contactors.Pole shells are used for mounting vacuum contactors in
switchgear assemblies for electrical power supply and distribution.
NO NO
128/140
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CN1227983 A
DE19809839 A1
WO9945617 A1
EP1060548 A1
ID26499 A
TW425742 B
TR200003221 T2
KR20010041540 A
CN1174530 C
IL138215 A
IN0363/KOLNP/2000 A
KR100588769 B1
IN206584 B
MY130210 A
METAL-ENCLOSED,
GAS-INSULATED
SWITCHGEARS WITH
CONTAINERS FILLED
WITH GAS
SIEMENS
1998DE-1009839
19980302
1998DE-10098391
19980302
1999WO-DE00553
19990222
The invention relates to metal-enclosed, gas-insulated switchgears,
especially medium voltage switchgears, with three-position
disconnectors and power breakers, especially vacuum power
breakers, arranged together in containers filled with gas. The
containers have ducts for connecting the three-position
disconnectors to the busbars of the switchgear which are arranged
outside the container and ducts for connecting the power breakers
to the cable terminals of the switchgears which are arranged outside
the container. The switchgears are embodied as modular structured
switch panels (SF) having hermetically sealed first switching
chambers (R1) accommodating the three-position disconnectors
(DS) and the busbars (SS) and hermetically sealed second chambers
(R2) accommodating the power breakers. The first and second
switching chambers (R1, R2) are interconnected by modular
connector devices (MK) and have gas-tight cable ducts (KD).
NO NO
DE19757402 A1
WO9931776 A1
CN1228634 A
AR009929 A1
BR9813674 A
ID26803 A
EP1040541 B1
DE59801900 D1
ES2166623 T3
US6462296 B1
RU2225667 C2
CN1160840 C
CIRCUIT BREAKER
SYSTEM, ESPECIALLY
AN AIR-INSULATED
WITHDRAWABLE
CIRCUIT BREAKER
SYSTEM USING
MEDIUM VOLTAGE
TECHNOLOGY
SIEMENS
SIMENS
AKTSIENGEZELL SHAFT
1997DE-1057402
19971216
1998DE-5001900
19981120
1998WO-DE03487
19981120
The invention relates to a circuit breaker system, especially an air-
insulated medium voltage switchgear, with the functional features
"connect", "disconnect" and "earth". The inventive circuit breaker
contains a switching module (SM) which consists of function-
orientated modular units, i.e. a base unit (BM), a pole unit (PM) and a
drive unit (AM). The base unit (BM) is permanently connected to the
drive unit (AM) and the pole unit (PM) is located on the same, in such
a way that it can move in a straight line. Circuit breaker systems of
this type can be used for supplying and distributing energy,
especially in installations which use medium voltage technology.
NO NO
129/140
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DE19747826 B4
Medium voltage
switching station
with metal
encapsulated air-
insulated enclosure
SIEMENS 1997DE-1047826
19971023
A metal encapsulated air-insulated medium-voltage (MV) switching
station, including a number of busbars (SMS), cable terminals with
bushing-type transformers (DFW), power switches (LSR) and a low-
voltage (LV) switch-cabinet (NSS) corresponding to the number of
phases. The busbars (SMS), the cable terminals with the bushing
transformers and the power switches (LSR) are arranged in function-
orientated modular rooms (SMR,KMR,LMR). The busbar- and cable
terminal-modular rooms (SMR,KMR) are fitted with a separate
pressure sensing device (DFS,DFK,DFL), and each pressure-sensing
device is connected to a pressure outlet-box (DD1,DD2) arranged in
the LV switch cabinet (NSS), with each pressure outlet-box
representing an independent pressure monitoring system.
NO NO
DE19734553 A1
WO9907045 A1
CN1229531 A
TR200000222 T2
EP1000448 B1
DE59801986 D1
PT1000448 E
RU2216085 C2
CN1166041 C
MIDDLE VOLTAGE
SWITCHING STATION
WITH A BUSBAR
SPACE AND A
CONNECTION
SPACE
SIEMENS
1997DE-1034553
19970731
1998DE-5001986
19980730
1998WO-DE02289
19980730
The invention pertains to an air-insulated metal-encapsulated
switching station comprising a busbar space for receiving a number
of feedthrough post insulators which corresponds to the number of
phases, each feedthrough post insulator being provided with a
busbar connection, as well as a connection space for receiving a
number of bushing-type current transformers, which corresponds to
the number of phases, each current transformer having a cable
connection. The busbar space (BBS) and the connection space (CS)
are separated from each other by a post insulator supporting sheet
(PISS) and by a transformer supporting sheet (TSS) in such a way that
both the feedthrough post insulators (FPI...) and bushing-type current
transformers are positioned at a mutual distance and arranged
mirror-inverted as a compact plug-in function board in the middle
voltage switching station. The inventive switching station is intended
for power feeding and distribution.
NO NO
130/140
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DE19730260 A1
WO9903181 A1
CN1231075 A
TR200000017 T2
EP0995249 B1
DE59808708 D1
CN1125520 C
PT995249 E
RU2216084 C2
IN195536 B
NEED-ORIENTED
MEDIUM VOLTAGE
SWITCHBOARD
PLANT
SIEMENS
1997DE-1030260
19970709
1998DE-5008708
19980709
1998WO-DE02040
19980709
The invention relates to a metal-clad, air-insulated medium voltage
switchboard plant with one or more functional zones for receiving
switchgear and/or cable connections and/or bus bars. The medium
voltage switchboard is realized by means of a switchboard section
(MSF...) having modular structure and a plant-oriented number of
separate partition areas (SCR...) with separate pressure relief devices
(DEE...). Said partition areas (SCR...) are interconnected with
function-oriented bushing devices (DEE...). The switchboard sections
with modular structure are used for realizing metal-clad air-insulated
medium voltage switchboard plants used for energy supply and
distribution.
NO NO
SE9701263 A
WO9845912 A1
US6229690 B1
JP2001519140 A
SE516127 C2
IN0588/CAL/1998 A
EP0974178 B1
DE69834554 D1
ELECTRICAL
SWITCHGEAR ABB
1997SE-0001263
19970407
1998WO-SE00620
19980403
The invention concerns a horizontally divided switchgear, including
compartments for high voltage and for cable connection. The cable
connection compartment is common to one or more switchgear
cubicles and is a compartment separated from the high voltage
compartment(s) of the cubicle(s). In the switchgear is included one
or more switchgear cubicles defined by vertical (12, 13, 14) and
horizontal (15, 16) walls. The cubicle is arranged with only high
voltage equipment, while connection means (18) for incoming and
outgoing current cables are arranged exteriorly underneath the
lower horizontal wall (16) of the cubicle. Bushing means (17) for
cable connections are arranged in the lower horizontal wall (16).
NO NO
DE29622654 U1
DE19638746 C1
Electrical System for
the Medium Voltage
Range
RITTER
STARKSTROMTECHNIK
1996DE-1038746
19960911
1996DE-2022654
19960911
The installation comprises a row of hermetically sealed functional
modules (2) traversed from end to end by a pressure relief channel
(3). Each module contains a cable connection chamber (5), a
power switch chamber (6) and a busbar chamber (7) insulated from
one another. The chambers are all connected to the channel by
pressure-relief flaps (12,13), from which gas can be expelled via the
channel and its outlet at one end of the row of modules. An
additional chamber (11) houses low-voltage or weak-current circuits
for control and measurement purposes.
NO NO
131/140
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DE29606796 U1
CN1168554 A
Medium-voltage
Switchgear with
Execution for Field
Connections
SIEMENS 1996DE-2006796
19960403
The present invention provides a medium voltage distributor,
especially a breaker pushing device having isolation pushing type
distributor assembly, the bottom of which has a bottom cover plate
capable of sealing the distribution line outlet. Said bottom cover
plate is a folding box, which is positioned inside of the distribution
board and is folded in transportation, and in operation state the
distribution board overturns downwards from the profile of the
bottom cover plate. This bottom cover plate has distribution line of
the distribution board for connecting with cable or bus.
NO NO
DE19613151 C2
Electrical switch bay
e.g. for load circuit
breaker
ABB 1996DE-1013151
19960403
An electrical switch bay or panel for medium voltage has a busbar
chamber and a chamber containing at least one switching
component, separated by a wall from the first chamber. The busbar
chamber (15 to 17) and the contacts (26) of the switching
components beside them can be joined and separated by means
of conductors (34) inside the panel. In the separated position, the
busbars are switched off. On each of the busbars or possibly on the
conductors (19 to 21) joined to them is fastened a fixed contact
piece (23) which can be touched by the first-mentioned conductors.
These are rigid conducting strips with one end touching the fixed
contact pieces and the other end touching the contacts of the
switching components.
NO NO
DE29622879 U1
DE19612849 A1
Switchgear for
Medium Voltage ABB
1996DE-1012849
19960330
1996DE-2022879
19960330
The device includes an electrically conductive foam material part
(7) inserted respectively in a space (4) between a high voltage
electrode (1) and an insulating material part (2) for the avoidance of
partial discharges. The device is a gas- or air-isolated instrument (6),
encapsulated in a metal casing, and comprising vacuum power
switches (5). The foam material part (7) has preferably an electric
resistance of less than 10 k OMICRON , preferably about 3 k
OMICRON .
NO NO
132/140
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DE19613750 A1
Medium voltage
switchgear section
with rotary circuit
breaker
SIEMENS 1996DE-1013750
19960328
A medium voltage switchgear section or bay (MA) includes
rotatable circuit-breakers fitted out with vacuum tubes and having
an isolating switch function and an earthing switch function. The
vacuum switch tubes (VS) are arranged in parallel lengthwise behind
one another in the container (BH) filled with an insulating gas (IG) .
The isolating gap to the cable terminals (KA) is produced by the
switch drive (LS) by means of a lifting or stroke (HB) movement and
the isolating gap or sever to the busbar terminals (SA) - by means of
a rotational movement, transverse to the longitudinal direction of the
vacuum switch (VS).
NO NO
DE19605712 C2
Air-insulated
medium voltage
switchgear
ALSTOM
SACHSENWERK
1996DE-1005712
19960216
An air-insulated switchgear plant for medium voltages has an
aerosol- type fire extinguisher near the insulating parts which is
tripped by the presence of an arc. The trip release is electrically
actuated. There is an arcing monitor near the live components
which generates a control signal if an arc occurs. After the
quenching of the arc, a flame sensor is activated which determines
any flame presence near the insulating parts. The output of this
sensor is joined to the output from the arcing monitor so that the fire
extinguisher is tripped only when both signals are present. The
extinguisher has an additional manual trip.
NO NO
WO9728591 A1
CN1210628 A
EP0878040 B1
DE59700617 D1
JP2000504555 A
METAL-ENCASED
SWITCHGEAR SIEMENS
1996DE-1003460
19960131
1997DE-5000617
19970120
1997WO-DE00094
19970120
The invention concerns metal-encased switchgear (1) for high or
medium voltage, at least one sensor, in particular a surface wave
sensor (7a to 7d) with an antenna (9), being disposed in the inner
chamber (4) of the casing (5) for wireless data transmission. A
transceiver antenna (11 to 11c), disposed at an aperture in the
casing (5) and directed towards the inner chamber (4), is provided
for exchanging data with the sensor.
NO NO
133/140
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FR2725843 B1
EP0708513 B1
AT177256 T
DE69508032 D1
ES2130551 T3
DK0708513 T3
Switchgear cell ALSTOM 1994FR-0012354
19941017
The cell comprises the circuit breaker with an automatic cut-out. For
each terminal (1,2,3) it comprises an insulating envelope containing
the cut-out elements. The different envelopes are mounted on a
common support beam (5) solidly attached to a control box (6) for
the simultaneous operation of the cut-out devices. Each terminal is
connected on the one hand to a first set of connectors (11-16) with a
set of busbars and on the other hand to a second set of connectors
(21-26) with a set of cables. The circuit breaker is operated by
rotation of the support beam within the support frame, which itself is
made from stainless steel.
NO NO
DE4312621 A1 Electrical switching
installation ABB
1993DE-4312621
19930419
In the case of a gas-insulated medium-voltage switching installation
which is formed from a plurality of switch panels (1, 2, 3), a passage
from the individual switch panels into a common expansion channel
(8) is opened by overpressure as a consequence of an arcing
defect. This is predicated on a relatively high pressure response level,
for which the encapsulation of the individual switch panels must be
designed. The invention now places an expansion vessel (19) into this
exhaust path, which expansion vessel (19) compensates for virtually
all the pressure fluctuations below the arc response pressure in order
to be able to implement installation encapsulation which can be
designed for the minimum possible overpressure.
NO NO
134/140
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DE9112916 U1
DE4129103 C2
Medium voltage
switchgear cubicles
in explosion-relieving
framework - has
three cubicles within
a common frame,
rear panels
attached with some
fixed and some
breakable bolts
DRIESCHER
SPEZIALFAB FRITZ
1991DE-4129103
19910902
1991DE-U012916
19910902
The medium voltage switchgear plant has three two separate
cubicles within a common housing with two subdividing walls. There
are three separate rear panels for each cubicle. The panel
fastenings around the outer periphery of the frame are steel bolts,
but the fastenings to the edges of the subdividing walls are plastic
bolts which have a definite breaking point. The purpose is that in the
event of an explosion in any cubicle caused by the switching arc,
there is a pressure release point. Additional baffle plates are
attached parallel to, and spaced from, the top panels of each
cubicle to allow egress of gaseous products of switching arcs.
Closing panel are pivoted at each end of the baffle plates.
ADVANTAGE - Gives added personnel safety in event of arc
explosion.
NO NO
DE4107725 C1
Encapsulated
three=phase
medium voltage
switchgear - is filled
with insulating gas
with diverters
mounted in series
and transformers in
outlet chamber
1991DE-4107725
19910311
The encapsulated multiphase switchgear has an output chamber
per switching panel, in the inside of which are integrated, cable
connectons arranged in phases one behind the other. A branch
conductor (2) and an isolatable inductive voltage transformer (41,
42, 43) are connected during a votlage test and arranged in a delta
configuration. The HV connection of each one of the inductive
transformers, in the operating position, is connected to the branch
conductor of the respective phase via a switching element. The
switching elements of all of the phases are connected by means of
a shaft (7) located in the output compartment so that the shaft (7)
can be connected with an operating part (22) arranged outside the
encapsulation and swivellable for isolating the transformers. The
output compartment (1) is square with flat sides (20b, 20c), and the
switching elements (5) are swivelled. The geometrical assignment of
the branch conductor and the inductive transformers, seen in the
direction of the longitudinal axis of the branch conductor in the
middle phase, is reversed compared with that in the outer phases.
ADVANTAGE - Facilitates compact design of switchgear outgoing
chamber, with testing, isolating and earthing arrangements.
NO NO
135/140
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CH681403 A5
EP0494397 B1
AT119717 T
DE59104881 D1
Electrical metal-clad
switchboard.
ALSTOM
SPRECHER ENERGIE
PATENTABTEILUNG
1991CH-0000054
19910110
An encapsulated electrical switch panel (1) for medium voltage
consists of in each case one busbar space (4), power circuit breaker
space (2) and cable connecting space (3) as well as a low-voltage
box (5) placed on the power circuit breaker space (2). These spaces
are compartmentalised with respect to one another. The cable
connecting space (3) extends under the power circuit breaker
space (2) through as far as the operating side (6) of the switch panel.
Underneath the vertical interrupters (17) of the removable vacuum
switch (15), which interrupters are surrounded at a distance by
insulating tubes (18) which are open from above and below, there
runs an air distribution channel (40) which is compartmentalised with
respect to the cable connecting space (3) and is provided at the
top with outlet openings (41, 42, 43) which are aligned with the
interrupters. Air supply channels (50) which pass through the rear wall
(7) of the switch panel (1) open from the rear into the air distribution
channel (40). <IMAGE>
NO NO
136/140
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DE4014099 C2
Stabilised switch
panel for metal-clad
medium voltage
switchgear -
incorporates
discharge channel
between rear wall
and reinforced plate
on which insulating
bus=bar supports
are mounted
ALSTOM
SACHSENWERK
1990DE-4014099
19900502
The vertically extensive edges (21) of the rear wall (8) are provided
with inwardly directed bevels (22) connected to a backplate (9)
limiting the busbar space and rigid supports (13, 14) for the insulators
(12) on which the busbars (1) are mounted. The stability of the entire
panel is increased even under heavy loading from internal arcs, and
the risk of deformation by hot gas flow through the discharge
channel (24) between the wall (8) and plate (9) is eliminated.
The vertically extensive edges (21) of the rear wall (8) are provided
with inwardly directed bevels (22) connected to a backplate (9)
limiting the busbar space and rigid supports (13, 14) for the insulators
(12) on which the busbars (1) are mounted. The stability of the entire
panel is increased even under heavy loading from internal arcs, and
the risk of deformation by hot gas flow through the discharge
channel (24) between the wall (8) and plate (9) is eliminated.
ADVANTAGE - Device can be used in metalclad busbar system with
greater safety and smaller prefabricated units can be assembled
quickly.
NO NO
137/140
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AU5205990 A
NL8900709 A
IE901045 A1
AU618458 B2
NZ233016 A
EP0393733 B1
AT108956 T
DE69010741 D1
DK0393733 T3
ES2059988 T3
IE65645 B1
Single- or polyphase
medium-voltage
switching device
and distribution
installation
assembled
therewith.
HOLEC SYSTEM &
COMPONENTEN
1989NL-0000709
19890322
Single-phase or polyphase medium-voltage switching device,
comprising a metal housing constructed from a generally
rectangular metal container (2) having side walls (3, 4, 5, 6), a
bottom wall (7) and uprights (15) fitted near the corner points of the
bottom wall (7). For accomodating the actuating mechanism of one
or more switches provided in the space bounded by the uprights
(15), the metal container has a mechanically rigid construction. The
one or more switches and further components are combined by a
solid insulation, such as casting resin, to form a single structural entity
and being suspended from the bottom plate (7) of the container (2).
For closing the housing metal plates (16) have to be attached to the
uprights. The container has to be closed by means of a metal top
plate (17). A medium-voltage distribution installation can be built up
from two or more switching devices, adjacently arranged, wherein
the containers (2) and uprights (15) situated next to each other
being mutually coupled and provided at least in pairs with a
common top plate (17).
NO NO
138/140
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DE3412324 A1
DE3313192 C2
Encapsulated, gas-
insulated medium-
voltage switching
installation
BROWN BOVERI &
COMPAGNIE
1983DE-3313192
19830412
1984DE-3412324
19840403
A gas-insulated medium-voltage switching installation, which is
encapsulated by means of tubular moulded bodies and attached
closure parts, contains in a known manner a busbar system, a power
circuit breaker, operating and current-conductor elements and a
current transformer as well as a - preferably capacitive - voltage
converter. The new installation is distinguished in that a closure part
which closes the free end of a tubular moulded body (84) on the
current output side is constructed as an integral or multi-piece
moulded part (71) which is penetrated by at least one current-
conductor element (72). This current-conductor element makes
contact on its side pointing into the interior of the encapsulation with
the power circuit breaker (76), or with a contact element which is
connected thereto. On its opposite side, which is passed out to the
free atmosphere, this current-conductor element (72) is equipped
either with a contact bush (74) or, instead of this, with a contact pin
for holding a contact element of the cable which forms the current
output, or of such a busbar. In addition, in its outer region, especially
on the output side, the moulded part holds the current transformer
(77), which can be formed into the insulating material of the
moulded body. In other respects, the integral or multi-piece
assembled moulded part (71), which is used as a closure part, can
support the voltage converter (78) on its region facing the inside of
the encapsulation, which voltage converter [lacuna] likewise into
the ... Original abstract incomplete.
NO NO
139/140
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DE3248211 C2
EP0114179 B1
AT37968 T
Medium voltage
gas-insulated
switchgear.
ORMAZABAL
1982DE-3248211
19821227
1983EP-0107100
19830720
Encapsulated medium-voltage switchgear filled with insulating gas,
in particular for use in mains distribution stations, with at least three
switch panels (5), which are each equipped with a triple-pole load-
break switch and an earthing device, with bushings (6, 6', 6") for the
connection of ring main cables (7, 7', 7") and of fuses of a
transformer branch as well as with bus-bars for the phases L1 , L2 and
L3 , with a common housing (1), in which the switch panels (5) are
arranged one beside the other and enclosed in a gas-tight manner,
characterized in that each switch panel (5) is divided by dividing
walls into three superimposed, horizontal chambers, possibly gas-
tight chambers (38, 39, 40) which are encapsulated one from the
other, in which chambers a switch blade of the load-break switch
constructed as a double blade is located, which is constructed as a
double disconnecting blade (10, 10', 10") moving horizontally and
contacting the bus-bar on both sides and that the load-break
switches are actuated jointly by a switching shaft (19) mounted with
one end within the housing (1).
NO NO
DE8211791 U1
METAL-TOTALLY
ENCLOSED SF
(ARROW
DOWNWARD) 6
(ARROW
DOWNWARD) - GAS-
INSULATING SWITCH
BAY, IN PARTICULAR
FOR MEDIUM
VOLTAGE PLANTS
1982DE-U011791
19820423 NO NO
DE2824623 A1
FACTORY-
ASSEMBLED, GAS-
ISOLATED MEDIUM-
VOLTAGE
SWITCHGEAR
FRITZ DRIESCHER
SPEZIALFABRIK FUR
ELEKTRIZITATSWERKSBE
DARF
1978DE-2824623
19780605 NO NO
140/140
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BE870975 A1
DK437078 A
NL7809970 A
FR2405548 B1
NL168360 C
DE2744502 C3
CH638338 A5
DK146459 C
CIRCUIT BREAKER
FOR AVERAGE
TENSION
PFISTERER 1977DE-2744502
19771004
A medium-voltage switch has at least one switching unit (2) in a
switch housing (1) which is filled with an insulating gas. In order to be
able to keep the space requirement for the switch housing and for
producing the connections between the switch and the power
supply as small as possible, a plug socket (13) for a cable plug (15) is
allocated to each switching unit (2). This plug socket (13) is located
in an insulating sleeve (6) which is passed in a gas-tight manner
through the wall of the switch housing (1) and which is sealed in a
gas-tight manner at its end which is connected to the switching unit
(2).
NO NO
DE2634058 A1
CH617042 A5
METAL-TOTALLY
ENCLOSED, IN
PARTICULAR SF LOW
6 - GAS ISOLATED
SWITCHGEAR
BROWN BOVERI &
COMPAGNIE
1976DE-2634058
19760729
In the case of the switching installation, the power circuit breaker
(17) and the interrupter circuit breaker (15, 23) are arranged in
compartments which are separated from one another by
compartment insulators (16, 27). In order to prevent decomposition
products, which are in the form of dust, of the compressed gas
accumulating between the poles of the power circuit breaker and
thus, together with gaseous decomposition products of the
compressed gas, reducing the insulating properties of the power
circuit breaker, a tubular bridge (28, 29, 30), which is connected to
the compartment at both of its ends and is filled with filter material
(31), is provided outside the compartment which accommodates
the power circuit breaker (17), through which tubular bridge (28, 29,
30) the compressed gas of the compartmentalised power circuit
breaker is forcibly circulated, by means of a fan (32). In
consequence, the decomposition products are removed from the
compressed gas in a particularly effective manner.
NO NO
